Learning To Blog

I find blogging to be fun. However, I have a hard time figuring out what to say. I have read that you should write about your interest or things that you think about etc. But I keep thinking no one will find it interesting. But I will just write and not worry about opinions. I want to improve my writing skills and blogging is one way to do it. I like the freedom of writing a blog. Again, you can write about anything and my hardest task will be having things to write about everyday.