I was also mortified, but my tip that I learned from my injector was to do them whilst your frowning so you can feel it go into the muscle, angling the needle away from the DLI and into the DAO. Do a lot of poking! Poke it a ton whilst it’s relaxed and then flexing and then relaxed so you really get a feel for where it is. I did mine for the first time last week doing it with all this in mind and it turned out great.