I was 8 afraid of 7? Because 7 8 9

I'm a pretty bad writer, though I love to visualize stories. I feel as though I need to keep writing to improve my writing and thus be able to make something I'm proud of.

Note 1: I have decided to just try and write without being so critical of my own work. Me disliking how I write is the main reason why I cant produce the stories I want to. I feel it is better that I write my story to completion even if it's bad rather than not writing it at all. 

Note 2: It's rather sad how I think about a story idea so much that I develop it entirely in my head, but get so bored of it by the time I decide I want to write it. What a drag.