Common App Waiver limit?

Hello! I’m currently a senior and applying to 10 colleges through the common app. I know that sounds like a lot but I’m doing it so I have a wider range to choose because I can’t pay for an expensive college. I’m eligible for the common app waiver fee and I REALLY need it. Even applying to one school is a big deal, so I was wondering what the limit was. I’ve heard it was recommended to be 4. So if it’s recommended, does that mean it’s detrimental to my application?? Please let me know. I’m lowkey freaking out!!