Tumblr is an absolute cesspit. It's good if you're trying to find fandom resources or keep a personal repository of content, but the staff are completely inept and the people who frequent it are absolutely toxic. The only reason I haven't left is because I met some great friends through it and the wealth of content it offers.
If you want a basic blog, you could try WordPress. You have to pay for a lot of the higher-end stuff or even some extended customization, but if you're just looking for a basic place to blog, it's pretty hot right now.