I get these questions often: “Should I use WordPress.com? Or download the software from WordPress.org and host it myself? Which approach is better?! Help me understand!!”
Thankfully wpmudev.org just published a handy guide that answers this question in neat detail. It’s conveniently titled:
WordPress.org vs WordPress.com: A Definitive Guide For 2015
So read up and don’t fret. Go boldly forth into the wonderful WordPress world. Remember, you can always start a free account at WordPress.com to get your toes wet, and then export your juicy content (very easy to do with WordPress) and import it into your new fancy self-hosted install later, if you like. You have freedom. And options. Isn’t life grand? Gutenberg would freak out.