You just need to put your head down, and live.
I mean, stand up, stand out, speak up, be all you can be. Totally inhabit your body. Be awake, aware, alive. To the maximum. Be ready to be challenged, be ready to be disappointed, to be attacked, dismissed, laughed at, poked and prodded, whatever. Damn the torpedos. Those torpedos will come. Damn them.
There are reasons to live. You must power through. Just because. Life, likes life. Maybe you won't figure it all out. Maybe you won't know all the reasons, maybe there will be great mysteries surrounding you. It's ok.
Life. It's for the living.