Since I graduated highschool every day has felt the exact same, but it was shit since middle school.
The only time I was happy was when I was a small child and was still innocent to my cruelties of the world and my status as a sub5 male, but even that wasn't perfect since I had to grow up with a schizophrenic mother who constantly ruined my joy and made me feel like shit.
I would say since graduating highschool to until present day are the worst years of my life, but the years before weren't much better.