Student loans and credit score...help!?

I am a recent college graduate last year and has $ 29,000 in private student loans with federal loans $ 23,000 . In a twist of fate , instead of teaching to pursue my degree as planned , go into next March Navy as an intelligence specialist . MedlinePlus MedlinePlus The good thing is that you are returning my federal loans . With AES loans , the minimum monthly payment is $ 313. I have no problem paying and you'll pay around $ 400-500 a month now to help reduce the most . MedlinePlus MedlinePlus I could be working with my father for a loan to pay you the $ 29,000 in total to AES , and I would pay $ 500 per month until paid off . MedlinePlus MedlinePlus If he agrees , it would be the best possible solution to increase my credit score / history I'm assuming , right? MedlinePlus MedlinePlus For the record , I have 8 credit cards , but with no balances on any of them . The loans are my only debt right now. What do you think ?