It doesn’t matter what you do. It matters how you do it. You could be a janitor or you could be a CEO of a company and it tells you nothing about a persons happiness. If you can be great and have fun doing things you don’t want to do then you will be amazing at doing something you do want to do.
Have a mindset that whatever task is in your way you are going to crush it and enjoy doing it. You can have fun doing something you hate or you can hate doing something you love. It all depends what you are focusing on. What you focus on you will feel.