I do the same thing. The way I try and address this is by basically turning off my inhibitions on my first pass of anything. Literally just start spewing stuff

I do the same thing. The way I try and address this is by basically turning off my inhibitions on my first pass of anything. Literally just start spewing stuff, whether its code or writing a tweet or blog post, making a presentation, etc. Then my second pass is with a much more critical eye and I start editing or reworking big chunks. Rinse and repeat! Has been working for me.