when you don’t create things, you become defined by your tastes rather than ability. your tastes only narrow & exclude people. so create.
It isn't a panacea. I've known creators whose tastes were, if anything, even more narrow and exclusionary than the people they were catering to.
But it's good medicine. For all I know, those creators may well have been fostered in an environment where their creativity was defined more by what they were against than what they were for.
A lot of my earlier creative modes were defined more by what I was resisting, or rejecting, than what I was trying to bring into being. I have a much better idea now of what I'm trying to do than I did before. Not that it's carved in stone; better that it remain just protean enough to change with both the times and the man, if needed. But better to make something, and in doing so re-make yourself, than simply take other things in.
I know it really isn't as easy as all that. But, again, it's good medicine, and a good place to start.