I used to do the same thing. I still have two jobs, but I used to work at least 16 hours a day on weekdays and around 12 hours on weekends. Accepting projects for my second job was very tough for me, but I did it because of the pressure I received from other professionals, friends and relatives. It didn't last long. I was constantly burned out and was not happy anymore. I was in that situation until I was 29 and questioned what I'm doing with my life. I had a similar question "Am I wasting my precious time on earth?" Because of that, I started dating, attending meetup events, and trying out new hobbies. COVID came and I still haven't figured out what to do with my dating and social life. It really depends on how you feel about your situation. It might be the best timing to try something new.