timelord
i could go back and fix my mistakes, and make more mistakes in the process

pretty much what I would do too

hogwarts

I'd be A hero in MHA with my choice of quirk. (you didn't say what type of hero)

"Hogwarts is my home"

Time lord so I could go back and become all of these things while maintaining my time lord power

become a pokemon trainer

POKÉMON
GOTTA CATCH EM ALL

Pokémon trainer

Become a hero

Timelord.
Evil timelord.
There's an awful lotta space and time out there to destroy...

TIMELORD

Jedi

Z fighter
Become GOD

pokemon

Become a Hero.