This is one of my favourite concepts from Jocko Willink, former navy seal.
Rather than being polar opposites, discipline and freedom are intrinsically linked.
If you want financial freedom, you need financial discipline.
If you want your body to do all the things you want, you need discipline around eating and exercise.
If you want a life of abundance, you need to say no to things.
Having discipline in your life may be restrictive, but it is incredibly freeing.