Ear BG stick Tips
When I first started home tesing many years ago, I had some issues with getting blood from my kitty's ear, too.
The thing that made the biggest difference for me in getting good blood samples was taking a sock (without holes in it!), putting about a cup of rice in it and tying it shut, then microwaving it until it was quite warm(but not hot enough to burn or make the cat uncomforatable, think of the temp you'd like to put on yourself as a heat pack), about 20 seconds or so, you can feel the warmth level and adjust, and applying the warm rice-filled sock to the top of the ear I was going to test. I put my other hand on the underside of the ear so that I can feel if the ear is warming properly or too much, then try to stick the top surface of the cat's ear between the edge of the ear and the vein that runs though cat ears. (On the vein isn't a disaster, but it will bleed much more, especially after warming the ear so apply pressure to stop the bleeding once the sample is taken.)
If you have a clear lancet cap for your lancet device, that will help you to line up your lancet where you want to stick, too.
I also cut up paper towels into 1 inch squares, so that once I have gotten enough blood on the test strip I can use one of those to apply pressure to stop the bleeding and prevent possible bruising of the ear.
Keep asking questions, and welcome.
Victoria