The very fact that it might not work is precisely why you should and must do this.
If there was ever a moment to follow your passion and do work that matters, this is it.
It's never too late to redefine self-control, to change long-ingrained habits, and to do the work you're capable of.
You create your own reality. There is no other rule.
Take a chance on your own abilities clearly, neither exaggerating them nor under-assessing them.
I don't care how many friends you have on Facebook or how many followers you have on Twitter. Those are not actual friends or truly followers. I care about how many people will miss you if you're not back here again tomorrow.