Don't compare yourself. That's your first and biggest mistake. On the surface, someone with a good job may look successful, but you have no idea how they feel. What if they had a dream they never chased and instead chose a stable job that makes them feel like a failure for never taking a risk? Maybe that's what you're going through now, you're afraid to take risks and chase a dream / goal in life because you think it'll set you back even more if you fail and have to start over when you want to do something else.

The funny thing about life is, almost no one has it figured out. People who share similar routes in life are seen as normal and ordinary. If you decide at 36 that you want to change your life around after failing at every attempt for the next 10 years, who cares? You have time. You'll be a professional in your 40s and alot of stories to share with the world about how you decided to take risks in life that everyone else was too afraid to take. The worst part in life isn't falling behind and being late to an imaginary milestone in life, it's regret. What's going to make you sad when you're old, that you didn't become successful in your 20s and instead in your 40s, or that you followed everyone else and settled for a normal life?

There's nothing wrong with getting a job and living a rather stable/comfortable life, but my point is, don't compare yourself to others because everyone has a different view on success in life. Find your meaning of success and follow that. Even if your life is riddled with failures at every attempt to find success, take pride that you decided to create your own destiny rather than chase behind someone else's.

Start being busy. "Sorry, I got to do ____ and I don't have time". "Not right now, I got to go, maybe later".