I also have a needle aversion. A couple things that helped me. 1) Playing the guitar helped me build calluses big enough that I can't feel my finger tips any

I also have a needle aversion. A couple things that helped me. 1) Playing the guitar helped me build calluses big enough that I can't feel my finger tips anymore on my left hand. 2) I like to put an ice cube on the skin about an inch away from where I give himself a shot in my stomach. For me my brain really focused on the cold sensation from the ice and I notice the needle much less. It's nice too because the ice melts a little and I can use that water on the skin to wipe away any blood that drip out after the injection.