@lrandall51 Sounds like you are experiencing 'pancaking' near your stoma sight.
Do you gave an ileostomy? I had that same problem in the beginning of my stoma journey. I found applying oil, olive or mineral, around the inside of my pouch helped.
Also if you want to thicken your output peanut butter, mashed potatoes and marshmallows all work.
I only change my pouch every 5 to 6 days unless I form a leak which isn't very often, thankfully.
It takes time, I'm 2 years in and have learned several tricks.