Fighting game advice no one asked for #1:

if you’re going to grind the training room please and I really mean it please have a goal planned out before hand otherwise you’re most likely just wasting your time since you’re just doing stuff without any kind of direction, think of stuff you don’t know about enough or that caused you trouble in the past, “how can I punish this with my character?” “is it worth it to use X mechanic against Y attack?” see your own combos and tech and think, “can I setup something after that?” “is there a reset point here that I don’t know about?” “if my opponent blocks this what are my options?”

Also use your training mode options to the best ability you can, I know some training rooms can be very bare bones but others like Guilty Gear’s, Blazblue’s and Skullgirl’s give you a lot of options that help you a lot more than you would think of.

Believe me when I say your training sessions will be a lot more valuable and will end up giving more results when you start doing this.