First get a copy of all 3cr. Find out where you stand. Check to make sure whats yours or his. Then start disputting whats not your,or what is not correct. Than start a plan. Must have a plan and a goal. Everyone here is very helpfull.
Make sure that you ready: Credit 101 and all the rest. Than start looking at all the forums that pretain to you, and alway ask questions.
Good Luck!