"if the task you’re trying to do is not something that’s intrinsically interesting, it doesn’t turn you on and you can’t perform."
Sounds rather like a motivational problem to me, then.
Or, maybe, an issue of thinking out-of-the-box.
There are some people who say that you can learn SOMETHING from anyone.
If this is true, then finding the aspect(s) that make the task at hand"intrinsically interesting" for you might give you a platform to jump out of the "motivational loop?"