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!