Does your DSN know about your swollen sites and yo yo levels? Any idea why the sites are swollen? Is it a reaction to the insulin or have you been using the same sites too often?
We all feel like pin cushions from time to time but we do get over it (Today I pricked my finger, not realising the level had changed from 3 to 4 . . . OUCH!)
Having to give up work must have been awful. Do you have any hobbies that can take up your time?
Hopefully this is just a phase you're going through (I've had lots of them!) Just be careful that you don't feel down for too long. Apparently we are prone to depression, so speak to someone about this. Your DSN should be able to help you. My first 2 years were my worst but I was determined not to let diabetes rule my life. There are always setbacks but we can just pick ourselves up and try again. I've been doing it for nearly 37 years and have shed many a tear but I'm still going strong.
You will get over this but do speak to your DSN and you'll work it out together.
We can make suggestions on the forum so feel free to ask specific questions.