How do I make a Blog page on the internet?

[Hinamori T]

I want to make a blog dedicated to my mother but I don't know how. My mother just died and I think it's a good idea to write about her, she changed a lot of peoples lives and it's only right that she's honored. A lot of people have agreed to this. I need, like, specific details, I'm no good with computer programs. Sorry to ask for so much, thanks in advance.