Following the Lord means just that.
You don't wait until things look right. Has He spoken? Is He leading? If you are going to wait for all the doors to be open before you move, you will never learn to follow.
Often when He leads, it is a quiet idea, like a fine silver thread, and it just won't go away. Everything looks wrong. No money, no time, you're not qualified and everyone has said you will fail.
Well, not Everyone.
Soldier, you stay if He says stay. You go if He says go. And you do it no matter what. The Christian who only does what is guaranteed to work, doesn't understand Heaven's guarantee.
The Impossible is not hard for Him. And, it won't be hard for you. It's only hard on the flesh.
Commit in prayer. Aloud
Take the first step.