well its seems I can't eat at home
Measuring is good, but another good thing is to learn your High Level Alarm. When your pouch fills you'll get a signal (an HLA). Mine is when my nose starts to run. Some folks sniffle, others hiccup, still others belch. When you learn your signal and it occurs, STOP EATING RIGHT THEN because you're done.
Yup! My nose starts running. I got that last night. It was weird because I had measured everything and it happened at 1.5 ounces. I took it as a sign that my pouch was not feeling like stretching for dinner and stopped. I'm glad I did. About 20 minutes later I felt a little over full but could only imagine what I'd feel like if I ate all 3 ounces.