"A ship in harbor is safe, but that is not what ships are built for." - John A. Shedd
There are a lot of sayings that reflect a similar sentiment, but this is the one that clicked in my head. I heard it at a time when I was at my lowest. It helped me get out of my wallowing, and to start taking the risks I had always dreamed of taking but always found excuses not to. That decision helped change my life and someday soon, I'll have achieved the goals I set for myself back then--and be prepared to take the biggest risk of my life... the one I've been working towards all this time.