I would say rather to your current self to live and work in such a way that the person you were a year ago would be proud to shake the hand of the person you are today. And every year both in the effort that you put and the integrity that you keep, your year ago self would would still shake your hand.

A personal note a little over a year ago I didn't know MySQL,Javascript, or PHP. I taught all three to myself and have become quite good or at least competent to develop whatever I can think of.