Exclude the active post in post grid

Hello!

I’ve created a grid called “similar articles” to put at the end of a post in order for the readers to navigate through the posts without changing page. The grid is calling articles from the same category than the one they’re reading. The problem is that, obviously, it also calls the post they are actually reading. I’m searching for a way to exclude it. I’ve found how to exclude posts by IDs but that doesn’t help for my situation.

Here is an exemple: http://asus-business.co.uk/smart-greenhouse-iot-automation-business/
the grid title is “you may also like” and the first post is the same as the one we’re reading.

Do you have a solution for me?

Cheers!

The page I need help with: [log in to see the link]