General Painting questions

[fire120ball]

So this is a pretty basic question i'm more looking at seeing the rite direction to go but I'm 16 and with not a whole lot of money. And I would LOVE to learn how to paint I have a place where i can make it a booth and a compresser and a gun. Just no know how, as in body work. I have two about 2 inch holes rite after the door but before the bed and I bondoed <---? a lot of small holes anyone shove me in the rite direction? thanks in advance