I just write for myself. Didn't feel like publishing anything yet. It's usually some short notes (~100 words, the longest one has 300 words) on what I liked about the albums and what I thought didn't sound so well. I do that in an Evernote file. I can show you if you want, but it's in Portuguese.
I tried starting a music review blog before, but it just took out the fun for me.
People suggested that I should start a Youtube channel. I'm considering it, thought I don't want to expose myself.
In conclusion, I don't feel like the world needs my opinion on the music I like/dislike.