Hey Luis - I think that the most important part of remembering material is really knowing it when you're away from the guitar. If you can hum/sing a falseta chances are you're going to remember it better. To get to really memorize it even better you can hum/sing and try to picture what your fingers are doing. I do this as I fall asleep sometimes and I either learn the music even better or I just fall asleep faster :) (And I do it with music I've played for years and years just to make sure I really know it in my brain as well as my hands sometimes). And knowing it consciously like this, rather than relying on muscle memory, comes in really handy if you get distracted while playing and your fingers forget what they're doing!
But I think your answer may be in your question - you jump around before solidifying any material. I have absolutely no objection to jumping around various Palos, but if you're having trouble memorizing it might really help if you give yourself time to at least learn one thing well before moving on. Maybe pick one falseta you love, and try to stay with it until you have it cold, then go on to the next thing.
I don't have a schedule, really. I only learn new material these days if I'm really in love with it (which usually means I've already memorized it because I've been listening to it non-stop), if it it's something new I don't yet understand, or if I need to for teaching. otherwise I prefer to spend my time writing my own stuff. But this is after a lifetime of learning material, so I already have hundreds and hundreds of falsetas memorized. I don't think I'd be able to write my own stuff if I hadn't learned all of those falsetas first back in the day, which brings us back to the top!
Let me know if any of this helps!
Cheers,
Kai

Hey Tony,
We’ve been asking VHX, which hosts our videos, to add this feature and so far all we’ve heard is that they may add it sometime soon (which is frustrating). Because of this, Tara has created loops of the slow versions of a lot of the material we have. Search loops in the videos and see if maybe one exists for what you’re working on, and if not please let us know. And we’ll keep bugging them for slow down and loop options.
Cheers,
Kai

Hey Tony,
This one's a bit controversial (which is to say that no matter what I say someone will disagree with me, possibly vehemently), but I don't think you always have to do rest-strokes with tremolo. I'll often start a phrase with a rest-stroke and then use free-stroke for the rest of the phrase, and sometimes I'll use all of one or all of another. If it's just not happening for you with the rest-stroke that's no reason to abandon tremolo all together.

Having said that, almost everything in the realm of technique is about giving yourself time to prepare for the next movement. If I said "play a rest-stroke with your thumb, wait 30 seconds, then play i,a,m,i as slowly as you like" you probably would have no trouble at all. So it comes down to the transition from playing the thumb rest-stroke and then playing the i,a,m,i. The practice would come down to working on that transition so that it's smoother and takes less time until eventually it feels natural and doesn't require a pause. You might have to rejigger your right hand/arm after the rest-stroke (and you may find that it's just not worth it) but if you give yourself the time you might also discover that there's a way to do it.

But again, if it feels terrible don't sweat it. You can still have a great tremolo!

Cheers,
Kai

Thanks for the insight Landon.

Hi Vicki,
Tony's link to the video is the thing to watch, but I wanted to relate my own story regarding nails as a sort-of cautionary tale (with a happy ending). When I started out I had a beautician put acrylic nails on and they were an absolute disaster. When I could finally remove them (several months later) the had totally destroyed my nails from tip to cuticle. The "live" part of several nails even split over the flesh. Ask Kai, he saw them last summer. By chance this coincided with me taking a course on building a flamenco guitar at Stephen Hill's shop in Spain and for 6 weeks or so I didn't even try to play. Gradually (maybe 2 months in all) my nails began to grow in and slowly heal. I stopped putting any type of "product" on my nails except vitamin E oil, and "Mane 'n Tail" cream. More importantly, I've begun to pay attention to several factors that have worked well for me. The first is the realization that your nails do not have to be that long. For me, just having a bit of nail showing over the flesh of the tip is fine. Everyone is different and many people successfully have longer nails. That doesn't work for me, and I've tried to use it to my advantage (it's easier to play picado runs - to the extent that I can play them - with slightly shorter nails, for example). The second factor that's made a difference for me is really working hard to figure out what shape each nail needs to be to achieve both maximum strength and optimal tone. This is an on going process, and everyone (again) is different so I won't say that this-or-that shape is best. What I did do is to look at a lot of material on classical guitar playing and adopt some pointers, namely: 1) sit in your playing position and determine which part of each nail strikes the string and try to maximize that surface by filing. You can do this by taking very fine sandpaper and wrapping over the strings (one at a time), try picking at several different angles and see what marks you've made on the paper. Also (2) although I only do major filing, say, once a week, I touch up my nails every day, generally only with the finest grained files and some ultra-smooth polishing paper (12000 or higher grit). This both helps maintain the shape and removes burrs that result from playing. I hope that this is helpful, but as I say everyone is different and there is no one size fits all solution. Nevertheless, in my case, I really thought at one point that I would have to stop playing altogether, but now I can play several hours everyday. There's hope!

Hi Vicki,
As Paul touched on the importance of nail shape, maybe you'll find this video that Kai pointed me to helpful as well.

This is really helpful, thank you so much for taking the time to write me back!

Thanks everyone for chiming in here! As always I want to say that what works for my nails works for mine, but may not necessarily be great for you. For a lot of people just the fiberglas paper (or tissue or silk or whatever) is enough to help. I've gotten used to a harder nail so that's what I need now, but acrylics aren way too hard for me. I tried once and just hated them, but I have friends who love them. So don't take anyone's advice as gospel. Unfortunately it's a bit of a process, but it does pay off when you finally figure it out.