So when (what part of the day) did you take your first hometest? How much liquid did you drink beforehand?

The headshops should have cheaper kits than the drugstore. At least in my city, the headshop was $9.99 and Walmart & Walgreens were $15+++. The headshops device was the same one I got online for $1.50, but this doesn't help if you don't have time for online ordering.

If you've only taken 6-8 hits in your whole life, and it will be 10+ days, I wouldn't sweat it too much.