Seconded. There's nothing at all wrong with wanting to improve your situation, even if it's what others might consider "pretty good", if it's not making you happy and fulfilled.

And also, seconded on the goal comment. You (OP) might get value from some talk therapy specifically focused on what makes you happy and satisfied with your life. The results may surprise you, particularly if you've never done anything like that before.

Job #1: figure out what you want. Job #2: figure out how to get it.