You are free to make choices. You are not free to escape the consequences.
Nothing is more common than unfulfilled potential.
Christian education is a bomb with a long fuse - it takes a while to go off.
The will of God is found in the Word of God. The more a person grows, the more he begins to think instinctively and habitually from a divine perspective.
If you want to use your testosterone to grow hair, that's up to you.
The reason God can't use you more than He wants to may well be that you are not prepared.