I have had many jobs including some that were not fulfilling. I generally have always loved my work, even though I have changed interests at times. Usually when I have changed jobs, it's because of a personal conflict involving someone with authority over me. Each one of those is a long, sad story ...
I always told myself I would not do a job that I didn't enjoy, but I have also worked at a gas-n-go to make ends meet (meat?) and tried to make that a fun gig, too. The main thing you have to accept is you sometimes have to do things that you don't care about in order to keep going. Whether you keep afloat or not is actually at least as important as whether you are fulfilled spiritually and emotionally in your work.
Playing in a band for $60 a night or painting houses for $75 a day is a decision that would be easy for a single man, but with a wife and kids your happiness must come from somewhere other than your job, sometimes. You just have to deal with it. [/NT encouragement buzzwords]
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It's just music for me. The other stims don't work.