Hi! So, I completely understand. That's happened to me before, and yes, I recommend telling your mom next time, so she can help you look into other options and stuff. Uhmm so smaller tampons are always something to consider, I started wearing those and found that they were way more comfy than pads for me, and this month moved on to bigger ones since I was having a pretty heavy flow. Then there's menstrual cups, I've never tried them, but ppl seem to like them. You could also try panty liners, which are smaller and not as uncomfy, but make sure you're on a lighter flow, definitely don't wear them if you're on a heavy one. Hope this helps!
(Your prob Greenie, right? Or maybe Luna, but I doubt it haha)