You don’t need more preparation, just go.
Understand: Action will get you further than additional planning.
If you are overwhelmed with fear on this, starting small is a great place to start.
Then do it again, and again, and repeat.
You know you are ready. It is just this last little bit of fear that has to be overcome. And you know how you do that?” “I have no idea,” I told him. “You go.” “Just go?” I asked Uncle Jake, now partly thinking he was just joking. “Yes. You just go. You see, fear lives in the moment—that powerful moment—between when you decide you are going to do something and when you do it. Once you go—once you start—you won’t be afraid anymore. You overcome the fear by going—and it is the same in many aspects of life. Parachuting. Talking in front of a crowd. Taking a test. Running a race. Competing in jiu-jitsu. The fear is in the waiting. So. Once you have prepared and trained and studied and planned, there is only one thing left to do: go.”
-Jocko Willink, The Way Of The Warrior Kid