Come down off that ledge, Jibb, and join the rest of us!! We all get ourselves weirded out over something(s), that's just normal when all of this stuff is so new and there are so many things to choose from.
I’ve been on Copaxone for three years and I’ve never (knock on wood) had a reaction. Doesn’t mean I don’t still think about it, but I tell myself if it hasn’t happened by now, it’s not going to. A bit of positive thinking goes a long way.
BTW, this might be a helpful hint -- one of the reasons I was so wigged out by the whole injection thing was because I didn’t know where they should go. Those little pictures they give you aren’t much help. So I asked the nurse if she would draw the areas on me with an eyebrow pencil. She said in all her years of training no one had ever asked her to do that. But she was game. If I do say so myself, it was a brilliant idea and it’s worked great.
Everyone develops their own system, but if you’re not medically inclined, this at least takes the guesswork out of where you should be injecting. Just my two cents.