I have found the below links excellent pathways to mastering mathematics. I actually was in the same place as you and started with Spivak Calculus. Now I am back at school studying mathematics :P

http://www.amazon.com/gp/richpub/syltguides/fullview/20JWVDE...

http://www.amazon.com/gp/richpub/syltguides/fullview/R1GE1P2...