(1 year later)
I finally got my mom to train me when I turned 3, started out with a weaker one punch man workout with 10 pushups, 10 situps, 10 crunches, and a 1 mile run.
On a diffrent note, i found out my system should be my quirk, it wont react to me calling out to it, or when im trying to use powers.
I have been able to absorb the mana orbs tho, and I even earn them for completeing my training for the day, i figured this out after watchung when I got them. All I do this year is train, train, train, until i got plenty of mana orbs, and even a few immortality orbs.