I used to feel that way, but I finally came to terms with the fact that my work-life was a mess, and I was basically lying to myself. I was working (and strugg

I used to feel that way, but I finally came to terms with the fact that my work-life was a mess, and I was basically lying to myself. I was working (and struggling, hard, in the way you describe) on a project I was telling myself would become a startup, and even though I felt I was being realistic about the limitations, in retrospect even that was insanely optimistic. I was burning myself out. Once I had this epiphany - triggered by going to Startup Weekend and having a ton of fun (and no motivational problems!) working on a project, I pulled the plug and eventually got a fairly regular job in a fairly normal company (in an excellent team, though). The epiphany and pulling the plug had a huge effect. It didn't fix everything overnight, but I did get into a habit of introspection, especially when I'm facing tasks that I struggle to get motivated for. They're still hard, but I am generally able to organise things around them in such a way that they don't get me down.