Solblade44
While I don't have Persona 4 Arena (yet) or a PS3, I can give you some pointers for fighting games in general.
1) Watch some live streams to see how other people may use your character and how they deal with the rest
2) Go back to training mode and try to incorporate what you saw
3) It sounds weird, but go back online and get your butt kicked (or if you can, win). There's nothing better than facing off against a real person plus you can see if your strategies will work.
4) If you don't want to fight online, crank up the difficulty of the AI in the game to whatever you think is right and go up against them.
5) Blocking in fighting games is vital to losing less health. It
sounds completely obvious, but its amazing that some people don't know to block properly. Gotta know when to block high or low, especially against overhead attacks.
Overall, it just takes
a lot of practice to get better at fighting games.
Jumping into the convo but this! especially watching online videos and playing online. the FG community has become more open to sharing tech and what they learn on youtube and there are channels that have been posting streams from the Japanese arcade scenes. There are even sites that have forums for fighting games that include match ups so you can get familiar with how to approach the opposing characters. The ones I've been using are Dustloop and Mayonaka Midnight, the second one being a persona site. also losing online does help. If you know what stuff you have trouble countering then you can always test things out in training mode which is something I do when I have trouble with certain characters.
also those sites are nice to find people who use a variety of characters. so meeting people online and maybe having a few friendly matches for learning can't hurt, and it can be fun too. Oh! and if you want to add me too I have a ps3. it's Momo61507