When one is in a mess like you are, one has no right any more to worry about the idiocy of one’s own psychology, but must do the next thing with diligence and devotion and earn the goodwill of others. In every littlest thing you do in this way you will find yourself. [Everyone has] to do it the hard way, and always with the next, the littlest, and the hardest things.
— Carl Jung

From essentialism:

When we want to create major change we often think we need to lead with something huge or grandiose. Instead of starting big and then flaring out with nothing to show for it other than time and energy wasted, to really get essential things done we need to start small and build momentum. Then we can use that momentum to work toward the next win, and the next one and so on until we have a significant breakthrough—and when we do, our progress will have become so frictionless and effortless that the breakthrough will seem like overnight success. There is power in steadiness and repetition.

Removing obstacles does not have to be hard or take a superhuman effort. Instead, we can start small. It’s kind of like dislodging a boulder at the top of a hill. All it takes is a small shove, then momentum will naturally build.

Make minimal viable progress. What’s the least I can do right now to prepare? Examples: One leader who is an exceptionally inspiring speaker has explained that the key for him is to start to prepare his big speeches six months before he does them. He isn’t preparing the entire speech; he just starts.
If you have a big presentation coming up over the next few weeks or months, open a file right now and spend four minutes starting to put down any ideas. Then close the file. No more than four minutes. Just start it.
A colleague in New York uses a simple hack: whenever she schedules a meeting or phone call, she takes exactly fifteen seconds to type up the main objectives for that meeting, so on the morning of the meeting when she sits down to prepare talking points she can refer to them. She doesn’t need to plan the whole meeting agenda. Just a few seconds of early preparation pay a valuable dividend.

related: Gall’s Law