I recently came across Coupert and was wondering if anyone here has used it? Does it actually find coupons or is it hit or miss?

Hello! I am new here and I'm wondering how couponing works. I've been thinking of it since the Honey extension controversy and was wondering where you actually find coupons to begin with.

Right off the bat- I'm not american, which I'm sure is important, but I'm curious if anyone here knows where/how to even look for coupons to begin with since I'm not sure where to start 😅

I'll be happy to get advice/tips/sites/whatevers if you got any :')