Pump help!

Hey everyone I need some help! I have seriously lost control of my blood sugars while at school this past year (my a1c is 11.2) I have always taken shots and they have never bothered me. A few years ago I got a CGM (Medtronic Guardian) and it was awesome until the sensors would not stay in me (I am just shy of 6 foot, 155 pounds, and 19 year old boy) I have noticed with pumps the cannula in the infusion set is different then the CGM cannula. I was hoping you guys have some insight on pumps and could help me gaining knowledge.

Nate, please join this group

MM has a new sensor now, ppl seem to like it better.or you could look into getting the dexcom g4 cgm, everyone I know with these loves them