You don’t need to have everything figured out.
In fact, attempting to come up with a plan that feels perfect is often what stops us from starting at all which is rather tragic.
If you’re stuck or you don’t know where to start, just focus your attention on repeatedly responding to one question: “what is the next useful thing that I can do right now?”
Keep doing that.
You’ll learn a lot more about what works, what doesn’t, and what to try next by doing.