Hey Dedekind
You're brave enough to post on the forum, you can blog!
If you're anxious about letting too much of yourself out, don't be overly personal. Find a subject you really enjoy or a hobby and blog about that. You'll find that your personality shines through and you will make blog friends who write about similar subjects.
You're in control, you can choose what you decide to write about. Have fun experimenting!
If you need some inspiration, go see Havi's
Blog Therapy posts.