So, I've been getting someone else to do the stabbing thusfar, but today, I decided I need to learn eventually, so I stabed myself, in the quad, just because it seemed like where I would have good control. Anyway, I couldnt keep the needle stable at all, and could feel it movin around down in there. Im gonna be sore as sheet I can feel it already. Any advice for keeping it stable. Just an acquired skill?