Is it normal that i can never settle with what i have?

I don't want to pretend that I am some extraordinary person who gets straight A's and promotions all the time. Lol. But no matter what I accomplish, I can never settle. I am never happy with what I have. If I'm in a relationship with a nice guy who cares about me, I still can't make myself stay in the relationship. I don't think it's a "fear" of commitment, I just don't think I can settle. No matter how good I am at my job and how well I am treated, I still end up wanting more. Same with where I live. I hate staying in one place for too long. If I don't have the money to move and have to stay in one place, I get anxious and gloomy. Is this normal? Anyone else gone/going through this?