Confused in Thoughts

After trying for three days with two different email addresses to create a journal on OpenDiary I finally decided I'd try out Prosebox. The only problem I see is that I can't find anywhere where I can protect entries or set it to 'friends only' or that sort of thing. I was planning on writing some private or intimate things but without a clear TOU or a way to block entries from users I really don't think its a good idea to post any of it. Help?