Do you have a blog?

I want to start a blog but I don’t want it to have a niche. I have a lot of interests and want to blog about them all. I will probably end up blogging about five different subjects or so, such as crochet, any books I’m reading, beauty (make up and skincare), and then any other interests here and there such as cooking etc. Do you think I should just pick a niche? Do you blog? What do you blog about?