The problem is, if I'm working on a project and try to distract myself with anything, I'm still constantly thinking about said project. I have no idea why![]()
This is probably a good thing. I'm certainly prone to the same "problem". Most of the above advice is means of getting your conscious mind away from the task as this gives the mysterious subconscious processes time to work their magic.
Going to sleep doesn't work well here, I just lie down and think about the project. Exercise works well because it deprives your brain of oxygen. Cycling, running, rowing - something sufficiently cardiovascularly intense that it's difficult to think in general. That usually does the trick for me.