We really all DO have a choice. When I want to motivate myself, I read lots of amazing motivational books and basically surround myself by stuff that inspires me. I love searching the internet to find great videos, and stories of people who are really successful and reaching for their dreams.
In the past I had to stop and evaluate my friendships and really cut out all the negative people in my life. Spent time with some wise and wonderful friends and family, time in nature sitting under a tree and just thinking about nothing. ie. meditating. All these things got me back into happy mode, and they always seem to do the trick. At the moment I have a little ritual of making myself a nice hot chocolate in the evening, listening to music and writing a journal entry (personally I like to write to God, that’s my way of finding answers). Currently I’m focusing on meditating again, and it’s really getting me into the zen state!!!