When it comes to honesty and blogging, there are many considerations. The first is whether or not the information you are posting could get you into trouble, legal or otherwise.
Another important consideration is whether you are mature and stable enough to handle rejection of your most precious beliefs. It may take you a couple of days to write a long, well-conceived post, but it only takes someone 2 seconds to leave a nasty comment.
So I guess the first rule of blogging is knowing who you are and making a conscious decision about what you are willing to share. There are many good reasons to blog. But I assume you put your thoughts online (instead of in a private diary) because you wanted other people to read them.
My blog is focused on helping people. I find that I can help people better if I share my experiences with them, so I talk about myself all the time. For example,
in this article, I explain my own experiences with anxiety and then provide coping tips.
So I guess the third rule is knowing whether or not your personal experiences are relevant to your audience and subject.
I will share one piece of advice with you: No one has any emotional power over you except that which you give them. So whoever is reading your blog is free to feel whatever they want about it, but they do not have the power to make you feel bad unless you comply.
I wish you the best.