I don't think this is unusual and I don't think you are a bad person. However, you may be a bad employee. Not in the moral sense, but in the sense that maybe yo

I don't think this is unusual and I don't think you are a bad person. However, you may be a bad employee. Not in the moral sense, but in the sense that maybe you would do better as a consultant who gets to take on new projects and new clients more often than in a regular job. I tended to struggle with this too earlier in my career, although fortunately I've been able to work for companies where I can switch to new projects often enough to keep my interest up, rather than just doing maintenance on one long-running project.