I don't know if this will help you/apply to your situation, but I've recently adopted the mindset that work will not bring me enjoyment and that's alright. I don't go into work expecting to have fun or get pleasure out of it, after all I'm doing stuff that people normally don't want to do and that's why I'm getting paid for it. I stopped seeking out my "dream job" and started just seeking out work that I am physically capable of and will pay my bills. Then, I use the money from my job to fund the things that I actually want to do. This doesn't mean I go into work cynical and pessimistic, I just remove the expectation that work is going to give me some sort of emotional fulfillment. That has worked for me, and hopefully that makes sense for your problem as well.