Compass
Breaking into an entirely foreign subject can be a daunting task. I find it best to approach it as a domain specific explorer.
First, figure out what a compass looks like in the subject.
Then find one.
Then figure out which direction to go.
A map can help you decide which way to go or what paths to take, but once you're on the move your compass will keep you true to your goal.
It prevents you from spending all your time reading the map instead of paying attention to the world you're supposed to be exploring, and it allows you to build new trails if none suit your goals.
Through your journeys remember that your goal can change, or you may get off track, so the direction you're headed may be fluid as well.
But your compass will stay true.