I'm terrible about writer's block. I think I get it every day. Mostly I have to fight to silence the doubt. I write a ton, then rewrite and/or start over more than I should. The best way I've found to help with writer's block is to listen to music and try to type so fast you can't hear your own voice bashing around telling you you aren't good enough--there's even a song called Head Full of Doubt by The Avett Brothers--that one helps a ton.