My advice is to live your life as best as you can without worrying too much about things you can't control. Try and build a life around yourself that'll help you be happy through it all, regardless of what happens. Enjoy your 20's. 30's are good too and 40's don't suck either.
To paraphrase Sun Tzu: do not choose a path to victory. Instead, choose a strategy such that all paths lead to victory.
The USA is run by unpaid 22 year old interns being supervised by underpaid 24 year olds.
Old people in charge are definitely a problem (McConnell, Feinstein etc) but the people in their offices doing all the heavy lifting are basically children.