Exlude recent 3 posts from "recent posts" widget

Hello everyone!

Sadly because my php coding is lacking a lot of comprehension, I have some trouble figuring this problem out.

I have the widget “recent posts” on my sidebar, but I want to always hide the first 3 posts from the list, because I always have the 3 newest posts already displayed fully on the start page. I’ve only found a way to hide specific IDs from the list, but it would be great to have something automatic.

any tips in the right direction would be appreciated!