My stubbornness led me to achieve my goals and, thanks to it, I avoided other paths that would have led me to a different outcome.

So being stubborn is a good skill. It is one of the keys to reaching your goal, but being stubborn does not mean not seeing the reality of the facts if you clash with that reality for years without results.

How to recognize what you are facing is right for you so? It is an energy factor. If what you are doing drains your energy, you have to re-evaluate some things. Viceversa, you are on the right path if whatever you are doing gives you good energy.