I think that can be one of the things that can help. But never fixate on just 1 thing. A mentor is good, but you want to have multiple sources you can learn from. Life equals progress, that is what Tony Robbins says. I believe that as well.
I recommend reading, journaling, excercisonf
Also, check my reading list for book recommendations: http://dariusforoux.com/reading-list/
And check Coach.me. An app that can help to build habits.