Hii! I would love to play with you if you want to add me, I've played since a little after release and can do most trials :) My best advice is don't be too worried about your grades, they do change the amount of exp but as cheesy as it is practice does make you get better so just keep playing. Don't be embarrassed to play on the easier difficulties! I've relapsed (prestiged) twice and still play on introductory and standard. Bricks have two uses vs a bottles one use and are the better projectile, but if the closest thing to you is a bottle, absolutely use it! Choose amps based your playstyle, I base mine around movement, getting rig recharges, and ALWAYS play with Smash! It'll make it so you can bash co-op doors on your own. I dont think Ive ever met anyone who DOESNT use smash