Learning to blog better

I'm thinking about how I can blog on a more regular basis and about how I can help people with the things I know. Sometimes it's hard for me to put anything out here because I assume that anything I have to say is boring, or just already known by others. Yet there are so many good blogs out there that seem to just put out there regular thoughts and feelings. They say what they feel like regardless of how boring or whatever else it might be. So I need to just start getting my thoughts out there. Any advice would be helpful.