Hello Desperate for change,
Only thing you are to do, if have already made Jesus your Lord,
is to be open to Holy Spirit, who uses any who is willing. He
is a potter and knows how to mould. I would suggest you to
measure how much you know on foundations of Christian faith
then you are ready to go. One More advice, as teacher you may face
questions from you are students; If you don't know just postpone the
answer until you pray and dig in the Bible about it and God is faithful
Just my lovely advice to you

Ev. Steve Apologia md