Precommitment: Using a commitment device to choose now to limit your options later, preventing yourself from making the wrong choice in the face of temptation. Putting money on the line, publicly announcing your goals, etc.
The Burnt Ships
List out all of your possible distractions, and then make it so that it’s impossible to do those things when you want to be working toward your other goals. This saves you from having to use willpower to resist them.
Rejection Therapy: Get over your fear of starting things by going out and trying to get rejected by asking for odd things from people.