Is school really the best part of your life?

I graduate high school this year. My school life has been pretty much awful (depressed throughout, isolated from my peers bc I’m a lesbian, pretty much no real friends irl, bad grades bc I’m bad at managing time) and all the adults around me keep telling me high school is the best part of my life and I’ll long to be back here when I’m working??? Which sounds frankly terrifying because I don’t want to be back here like ever