[quote name='JEKKI']what I hate is I develop so many bad habits playing against psp AI since they're so susceptible to a lot of my attacks,
yet when I play against a human all my attacks straight up whiff, I still gotta learn how to poke well and find opportunities to use my favorite move (xiaoyu's df+2~1)[/quote] yeah, the cpu likes to dash into your attacks and block, so you don't really get a feel for spacing.
i haven't played in a while, but i remember using df+2~1 as a whiff punisher mostly. it doesn't push back as much as it did in 5.0, so you have to be careful when you use it. if it's blocked you get launched for free (-17?), i think. on the plus side, i think it also takes 17 frames to execute, so it's also one of your main punishers. don't quote me on the frames though...
poking... ff+3 is pretty safe and gives big damage on CH. 1,d+2 and df+1 variants are mids that allow you to put some pressure on. and of course, d+4 is the low poke of choice... remember you can do it in RDS and it spins you back around. you also have AOP d+4~3, ss+4, hyp 2, ff+1...
i think the most important thing to practice is defense, probably the reason why i was so terrible at tekken. learn to block lows as well as learn your best punishers, learn frames and what kinda options you have when you're at -1, -3, etc.
it took me a long time to get somewhat decent, just keep at it and keep playing real people =P i used to practice against the computer on TTT all day and i didn't learn anything applicable to fighting real people. above all, don't get caught in theory fighter... there's a point that you'll reach where you'll learn much more from getting experience by playing as opposed to reading more theory on the internet.