| Relax, the whole thing will be pretty clear soon. You may want to try the old practice method of injecting into something other than you a few times. That would help you get the mechanics down. Since you would throw the needle away afterward, it wouldn't matter if you dulled or otherwise ruined it. Try just holding it over a wad of paper towels and see what happens when you inject.
The only harm you could do to yourself is run high blood sugar because you got too little insulin in the injection. Test often until you know what is going on. Before you eat, an hour and two hours after, when you go to bed, when you get up and when in doubt. Make sure your doc writes your test strip prescription for enough strips.
Another idea is to attend a group discussion of new diabetics, or ask your doc to set you up with a Certified Diabetes Educator to go over things again. The nurse must have been rushed, she should have maybe tried you out with a few practice runs on the paper towel pile.
We all felt this way when we started a new regimen. You should have seen me mess up my first few set changes for my pump! Hang in there Alex, you weren't born knowing this stuff and are doing just fine. Mich  | 
