How is anyone happy in this world.

I just don't get it the average person spends like 80% of their life doing things nobody really wants to do like sleeping working shopping for groceries etc I really don't get it I already hated school and now I'm expected to get a job and work 8 hours per day for the rest of my life I really don't feel like life is worth it anymore if I only get to spend like 15% of my time actually doing things I want and the rest of it is stuff I either don't really want to do or absolutely hate I don't want to have to do stuff for someone for the rest of my life going to work when I get told so, do what I'm told and just having to do shit Sound awful how does anyone that isn't rich manage to be happy