computer trespass - unauthorized use or access of a computer system... class E felony, likely 5 year probation sentence, not likely any jail time other than overnight in the bullpen...
they will probably try to put a single count on each time you gained illegal access into an account - even if it were the same account, then try to pile other shit on top of that, like the phishing... probably identity theft, or some other bogus shit... just so you cop a plea deal to a single charge of computer trespass..
being a juvenile you might avoid a felony conviction, but still not worth doing, especially not using a proxy...