Keep writing.

The voice inside your head will ask you to stop.

It will ask you to do something else instead.

It will tell you that the idea you are writing about is corrupt, that you should change track, that there might be a better way of writing it, that this will alienate your audience, that continuing this is of no use, that you are becoming boring and repetitive, that this is not good enough, that you are not good enough, that all you need to do is to stop typing and do that other thing, the one that's shining so bright, that if you just stop typing right now and switch, everything will be easy, everything will fall in to place, that the only reason you are miserable, that the only reason you are not successful yet, is that you are not switching, so listen to me and stop typing, do something else.

That voice will keep talking but if you don't listen it and you keep typing, you get where you need to be.

There is a time to write and there is a time to edit. It's wise to not mix the two.