Am I too old?

Feeling out of my depth today.  Between my ultra-horrible job and my two boys, I have about an hour of free time everyday.  Writing has been difficult.  I'm behind and that's making me depressed.

I've been a "writer" for as long as I can remember but my training is in art.  I have studied comics all of my life but I've always been too slow at my craft to realize my stories.  At this point in my life, pure prose is a faster way to get my ideas out into the world.

Am I too old to begin?  I'm 42 and this feels like a young person's game.  I don't know.  I'll let that take care of itself.

An old sketch of an old dude to celebrate my doubts.