“Jesus commanded them that they should take nothing for their journey, save a staff only.” Mark 6:8-9
The point here is to get going, and then rely upon God. Once you get clear direction from God, it’s easy to dawdle, thinking you need to prepare more, get this or that in order, and so on.
If the instruction is from God, the right thing to do is get going. Part of getting going is realizing you can ‘travel light’, not depending on yourself but on God. This applies not just to physical stuff, but to mental stuff. You might think you need to get a Ph.D. before you can start teaching, or study every book before you can utter a word.
But if God is calling you, just get going. Those sorts of steps might happen along the way, but it’s easy to lie to ourselves about what needs to happen next.