Hi Dandelion--Writing is my dream, too, and I spent a long time wishing I was doing more of it. One thing that really helped was doing a lot of low-pressure writing for the web--"web content." Textbroker is one place I recommend; you sign up and accept small assignments, then get paid a small amount. It's pretty US-oriented, but there are several other sites. You write product descriptions, blog posts, those ubiquitous "top ten" lists, etc.
It's no way to make a living, but it really increased my confidence, productivity, and ability to write quickly.
<3
Hope you feel better today.