50 in 50: What is easy to write, what hard?

I find it easy to just write flow-of-consciousness like this. I tend to write my entire blog in this style.

I also find it quite easy to write in a sort of overly-convoluted style, which I do often in my private writing, not so much on the blog.

What I struggle to write, and wish I could write more easily, is longer-form items which are well written and structured. Sort of the kind of thing that is found on Substack. I find that I cannot formulate my words that clearly, and in a way which sounds... professional, of sorts. I imagine that each piece takes a while to write, as well, and must be paused and resumed often, which I do not do: if I stop writing, I tend to just not finish. I don't do well with drafts.