I need incentive to get over the procrastination hurdle, and honestly what usually kills me is doubt that the effort matters or that I can accomplish whatever goal to my level of utter perfection (so why bother trying). My mind latches onto some small detail and distorts it to the point of oblivion, even if not directly related, as far as connecting it to more big picture goals I want to move toward. My consciousness is very much a series of spiderwebs and maps.
Honestly - I would suggest meditation, or mindfulness rather. If in do nothing procrastination zone when you want to get things done, ask yourself why, try to write out why or what's occupying your mind... usually if I do this, I come to a point fairly quickly where I will contradict myself, edit myself for clarity, get annoyed with myself, and realize I'm being stupid. If I actually take that prompt, realize what my brain is doing, and actively tell myself to fuck off - effectively blocking my brain from making that error with awareness of my brain making that error - I can get out of the cycle, if only temporarily. It does feel a lot better to *do*, though. INTP types, however, have to be in the "right zone" to *do*, have a reason to *do* for themselves (someone telling us what to do shuts us down hardcore), otherwise it "doesn't feel right" (which really just means "I need to come to this conclusion on my own"). It's not that we can't. Might take some extra effort, but free form spewing following by thought organizing usually gets me sufficiently annoyed with myself and seeing clearly enough to make a plan and motivate myself to implement it (regarding already realized goals) - it just has to be my choice on my timeline.
Don't do that because I told you to, though.

It is the only reason I managed to go back to school for physics and keep myself set on some lofty goals, however. Even if the process seems crazy, results matter.