Very true. Hive is al about being yourself and sharing your own thoughts. A good way to experience the variety is exploring all the wonderful communities, as you said.

I'm currently guiding someone, who always wanted to get into blogging/writing, but that person is overthinking it way too much thinking a blog on Hive requires masterpieces in terms of content, which is definitely not the case.
As long as you are passionate about something, you can write about it. :)