I know exactly what you mean. I was overwhelmed for the first few days, too. My vet didn't prescribe home testing but he didn't discourage me when I suggested it, either. I much prefer knowing what Genghis' reading is before I inject her - the peace of mind is worth it although I'm lucky Genghis is pretty cooperative. The lancet pen I got I just couldn't judge the "sweet spot" on her ear very well - not sure what kind yours is or how it works, but basically I uncapped mine, and just held it like a regular pen with the pin sticking out. I distract her with treats/food, rub the top of her head with my lancet hand and hold her ear with the other. She absolutely hated a cotton ball in her ear, so it really helped me to put protective band-aids on my thumb and forefinger to brace her ear, then lancet by hand. I can almost feel it penetrate her ear (and yes, sometimes I've gone right through!

) but she has been none the worse for wear. One thing -- again not sure what kind of meter you have -- but if I put the strip in too soon, it "times out" and the blood drop is wasted. It's a bit of a dance but you will get there! I'm clumsy as all get out but after nearly a week we're really getting there.
The other thing is, don't worry
today about adjusting doses or anything like that. Use the spreadsheet to log your results (it's amazing - I can send you a link if you like) - it has the twofold benefit of giving you a better picture of how the insulin is working and gives more experienced members a clear view to make recommendations. Don't be too anxious to start making tons of changes right away - tincture of time will tell you how to proceed.
You're in good hands!