I've been diabetic for 35 years but was just put on a Medtronic insulin pump 3 weeks ago. I am loving it when it works. I'm a dominant right hand and have had a ton of problems with the right side of my body. 4 of last 5 infusions resulted in a bent cannula and the last 2 times it works the wire keeps getting twisted. Right now I'm ok, but the last time it got twisted up it was a prelude to a delivery failure. I'm sure it's a rookie mistake, but can anyone tell me what I'm doing wrong.