Christ_empowered (may I call you Ian?)
Perhaps you could ease into bible studies training by looking at this website:
http://christiancourses.com/. I was able to grab the entirety of one of their free courses (they have one almost every month) on Martin Luther by an acknowledged Reformation scholar Robert A. Kolb. That website seems pretty good.
Attending bible colleges should come with a warning though, even for the long-time believer: depending on the school it will be very hard for you to come out of their curriculum and not espouse the particular theological bent of that particular school if you are not solidly founded in scriptural doctrine.
When I was about 16 I was just starting to get into real "studies" of the Bible and I had never read the prophets before and in the Church library was a commentary on the book of Amos. I showed it to my Dad and he asked, "Have you read Amos?" I replied, "No, but I'm hoping this can help introduce it to me and help me to understand it". My Dad wisely replied, "Son, you have to be real careful with commentaries and you should always read the Bible first before you ever turn to reading man's opinions on it".
WORDS TO LIVE BY.
Thank you Dad!
God Bless,
Josh