Social Anxiety Blogs

I'm new to blogging and could use some pointers. Should I write like I'm writing a letter or should I write like I'm having a conversation? I have super social anxiety and I am really tired of it. I use to drink alot and that caused a load of problems. I don't drink as much and my anxiety has become more intense. I am taking some medication but it's definitly not enough. I'm even anxious about anyone reading this, so please "don't read" lol