I guarantee you'll pass, you said you stopped for 8 months? The longest time weed stays in a person is 90 days, that's pretty much all the % of your body fat. And you said you only took one hit? Thats nothing man. So pretty much when you took that one hit, its pretty much like your first time smokeing weed. So it will be in your system for 1-3 days, 3-7 days if your metabolism is like really really slow. Plus you said you passed the at home drug test? Ya dude youll pass with flying colours no worries.