The best, esp. for a first blog, is Blogger.
I'd go go to Blogger.com & sign up. They have a good amount of templates to try out & play around with & it's pretty easy to learn it.
If you decide to do it & need any help with anything, you can just message me here or email.
I'm pretty familiar with Blogger now. Getting familiar with Wordpress too, but Blogger is so much easier & more versatile.