If I could go back in time and give myself some advice ...
Well, that's quite a questions. And the answers are not as easy as one might think. We are who we are based on the lessons we have learned over time. If we didn't make mistakes, we would not learn. We might avoid a pitfall here and there, but we wouldn't learn the lessons behind the lessons - the root cause, as it were, for why it was a mistake in the first place.
However, one piece of advice I would like to give myself in the past is this: listen to the advice you are given.
As I look back, I was given some great advice by a lot...