The AI is pretty useless to try to get better with the game. Going through a couple of times starting out is fine, but trying to beat the AI is useless since it doesn't help you prepare against real people at all.
Get on random ranked matches online instead - you'll get beat there by tons of scrubs and be forced to learn attack patterns, zoning, offensive and defensive strat, as well as spamming moves that other scrubs cannot counter against.
After you get tired of playing scrubs in low ranked BP matches, go on player matches with perhaps some rare players you found online who actually are really good or go online with some Gaffers. Player matches usually help you better in leveling up your skills as well as increasing your character match-up knowledge than ranked matches.
Having some ranked matches is always fun once in a while though since you have BP on the line.