Why am I never content with my achievements?

I feel that especially when it comes to work, I’m never satisfied. I always move the goal post. If I achieve a goal I set for myself I don’t really celebrate or take it as a win, I set the next goal and say I can do better. (i.e., got a new higher paying job at the salary I asked for, but instead of being happy I am once again on the grind to try and get a raise again even though I’ve been at my new job for less than 6 months…)

Surely it’s not just being a Capricorn right?… I feel like there has to be something else going on. 😭