‘Shitty rough drafts’ doesn’t mean your rough draft is bad, it just means:
The rough draft is the shittiest version of this story you’ll ever write.
You may feel like the rough draft you’re writing is an awful, terrible mess, but it probably isn’t as bad as you think it is. (Or you may feel that it’s a fantastic piece of writing right now, and worry what it will look like to you tomorrow.) No matter your feelings in the moment though, this story will never be worst than it is now.
It only gets better from here. Your writing only gets better from here.
So keep writing, and keep writing rough drafts, shitty or otherwise.