Willybean’s basically got it covered. Now I’m confused as fuck by your posts so I’ll try to answer your question and if I’m not on the same page as you lemme know. Obviously the easiest move to get off your base would be the stand up, that’s all about timing and beating your opponent to make the first move. If he keeps trying to pick your ankle from on top, then stand ups aren’t going to work well. A sit out turn in (that’s what we called them) was my favorite move from bottom position and would be what I would do if they keep picking the ankle. Then you can get into switches, Clemson rolls, and all sorts of other crazy shit, but that’s more advanced and not needed right now. As for improving your base, and not getting broken down so easily (I had the same exact problem for a while) you need to get on your toes and keep a post (a leg, arm, something to keep from being turned over) out there. Get control of one of his wrists, that’s soooo important. There’s a start, let me know what else ya need help with.