| Hi Funnybunny,
I'm just finishing a trial on the Cozmo (4 weeks) and I didn't have any problem with the sites, but I expect that some sites are better than others. I used the Insets and they worked great for me. I also used the Ultraflex (until the recall) with no problem. I avoided the beltline.
My guess is that you just got unlucky with your first insertion and those problems won't happen very often.
It's a downer that your mom doesn't get it and she is not supportive. It sounds a little as if she is in denial concerning your diabetes. Maybe deep down she blames herself for "giving you" or "causing" the disease. Who knows? Either you have to accept her attitude and move on or get her into counseling (with you) to work through the issues.
Keep a stiff upper lip!
-Bob | 
