19 days and 2 pounds of beans sounds like a lot for a hand grinder, honestly. I get that new burrs need some time to settle in, but people act like this is some huge ordeal when it is really just coffee. Write your clicks down in a notes app, adjust one click at a time, and stop jumping all over the place when a shot tastes off. Two pounds is like 30 shots, that should be way more than enough to figure out a grind range unless something else is going on with your puck prep. Tbh the whole "burn through beans until it clicks" thing feels like people making a hobby sound harder than it is.