Acting is probably the greatest therapy in the world. You can get a lot stuff out of you on the set so you don't have to take it home with you at night. It's the stuff between the lines, the empty space between those lines which is interesting.
A big budget studio film is slower, they've got so much to create around you. Everything is more complicated.
When I was in high school in the '50s you were supposed to be an Elvis Presley, a James Dean, a Marlon Brando or a Kingston Trio type in a button-down shirt headed for the fraternities at Stanford or Cal.