Hell yeah it would change me! And that is a lot of money. I'd do these things:
-Pay off my student debt. Pay off debt of friends close to me.
-Buy myself a nice house somewhere. Buy all my friends&family houses near me
-Travel the world!
-Maybe help fund an environmental project, either come up with my own idea, or donate money to something. Or both, because 100mil is a fuckton of money