I've signed up for NaNoWriMo. So from the 1st November, for a month, I will be typing furiously trying to write 50,000 words for a novel I have no idea about yet. I'm consciously trying to not think about it till then as I just want to write whatever comes into my head and not worry about quality or if it even makes sense.
This may sound like a crazy way of doing things and the usual advice is to have a plan, write a draft, check the plan, blah, blah, blah. But I've always found when I start with plans I over think and struggle to actually get any words down. When I was studying, once I'd finished researching an essay I'd just sit and write for an hour. I found that not only was this good exam practice, it was the only thing that worked to actually get me started. And once I had an hour's worth of words, I'd read over it and then make my plan and do the next draft and all the rest of the blah, blah, blah stuff.
NaNoWriMo actually encourages my way of writing. (Though I think I'm maybe supposed to have an idea of what I'm going to write about). It's a month of quantity and not quality. So I'm just going to go for it and see what happens. It'll be a test of my patience and dedication to actually sit down each night and write. If I can't do this and write when I don't have to care about the quality then I'm really going to struggle to write anything in the future where quality is important.