Started playing pool in 1979 or 1980, and to be honest, it stopped being "fun" 25 or so years ago for me.
When I was a dumb kid, I had aspirations of "going pro", but after playing some low level pro players, I realized how big the gap truly was, and then realized that a part of getting to that level requires a talent of obsession in practice which I did not have. And this is coming from someone who has played 60 hours a week at my best playing times, on top of working 40+.
I spent the next several years trying to close the gap, but to no avail.
I have spent the last 20 working on smaller goals, such as local tournaments etc. Some successes here and there, but mainly just scuffling around and picking my spots.
To say I dont enjoy the challenge would be a lie, but the enjoyment of just knocking balls in the holes died long ago.
You need to find what motivates you and go from there. Having fun is great if you got it, but its not a prerequisite to enjoying some aspects of the game.
There are guys who will go into a pool hall and you will only see them on a corner table, shooting the same shot over and over. My suspicion is it was a shot that cost them somewhere down the line, and now they chase mastery if only for that one shot. But it holds something for them, as they keep doing it.
There are folks who want to be top gun in their local league, and thats enough for them.
There are people who want to be state champions, and that is their drive.
Its all about what you really want. If you are chasing something, and the target seems like its not going to give you something, then neither is the chase.