Indeed I sure as Hell wasn't thinking of 40 much less beyond, when I was your age....
Let's see when I was 20 I was engaged, newly, to my first husband. We did so many fun things.
Poker games
Concerts (mostly country music. Sorry.)
Family gatherings
We went to adventureland a couple times. That is Iowa's rinky-dink excuse for a St Flags style fun park. Lame in comparison.
He took me in the fields in the tractor & combine
We went to church alot n believe it or not so many church activities were actually Fun
We went to bars once I was old enuf..... but not many as I was almost constantly pregnant. ?
Life was fun at 20.
It's slower paced now but still rarely a dull moment.