What am I doing?

It took me forever to get back to this. I don't even know what to put in the address bar to get here. I don't remember how to sign in. I went to Google and they told me my password was incorrect. So, I reset it to what I thought it was in the first place. How do other people find out about someone's blog? Word of mouth? Posting the address somewhere like on fb? Does anyone ever just "stumble" along someone's blog? People get into trouble over what they've said in a blog. Seems like a blog is a public diary. I'm still not sure what the point of all of this is. Like I said. "What am I doing?"