Hi John and welcome.
I have to admit, as I first began reading your testimony, I though you were still being lead astray. Praise God you are questioning what you have been taught! You will find similar stories here. Keep reading your KJV and you will be able to find the answers you are looking for.
The Lord gave you humility to repentance, and that is most important.
http://www.creationliberty.com/articles/denominations.php I am sure Chris can explain that you don't need to go to seminary to teach the gospel of repentance to others.
Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth. 2 Timothy 2:15You need only to study the Word of God and teach others the truth.