This is the most simplistic advice anyone will ever give you, and you might hate it but just do it...
Eat till you puke (not really then you're just wasting calories, lol).
Just focus on the main lifts and make them BRUTAL man! Just one lift for a whole workout might seem like a waste, but if you're giving it your all for each rep you preform and keep progressing forward each workout you'll put on more size than you even thought was possible.
3200 calories won't do you shit. Aim for 4000 at least.
"There is no passion, without some obsession."