Exclude cat. from home page?

Hi people,

My first post, loving wordpress, been reading, learning and slowly inputting bits for the last couple of days!

I need a spot of help, my website is https://www.gamebargain.co.uk

If you go there, it takes you to the main page, which shows all blog posts from all my catagories.

I would really like to exclude it from showing the posts from my submit a bargain catagory, as this is the user generated content side of things and they wont adhere to the same templating I am using for my own postings. I want my home page to look nice, so want to restrict the user generated posts to the submit-a-bargain catagory, then if I want to ‘mainpage’ the bargain I will edit it myself.

Any help would be much appreciated.