Hiya! So. I'm still a bit new and I totally understand being overwhelmed by the spreadsheets. When I started looking at them, they absolutely intimidated me. But! Once you know what all the stuff is there for, it's a lot easier. So, spreadsheet lingo:
AMPS- AM (morning) pre-shot, which is kitty's blood sugar number before you feed or give insulin
All the little +numbers after that track the hours AFTER you give insulin, so if you test again two hours after your shot, it'll go in the +2 slot on the spreadsheet.
That will take you all the way over to PMPS, which is your evening pre-shot number.
Mine are at 3 am and 3 pm, for example, so if I want to test my kitty again around 6pm before he gets first dinner, that's a +3 on the spreadsheet AFTER the PMPS. You're basically dividing your day into two twelve-hour-chunks of time, since we dose insulin twice daily, twelve hours apart.
There's a little slot for your dose of insulin (mine's at .75 right now) and a blank space aaaaaaaaaalll the way over if you want to throw in notes to explain why something's wonky (like mine's got a note or two about vet visits, which drive Sherlock's numbers way up).
Does that help?