Hide category from homepage?

Hi,

I use this theme as a portfolio for my services as photographer.
Now I would like to add a real “blog” to it.
But since this theme uses the blog posts as portfolio I was thinking how to make this possible.
I thought maybe I can hide one category from the homepage and in the side bars manually make links to my blog posts.

Is this possible and how? 🙂
Or would another way be better? Love to hear it!
Would be great to have a Blog page where you can find all the articles with the category “blog” as well.

Thanks in advance!