Hair Follicle test? Will I pass if I never smoke but trimmed weed?

Hey guys I have a hair follicle test in the very near future and I am trying to get some info. I have not smoked for 3 years, but I am a caregiver and I take care of/trim plants for my patients. I always wear a hat while trimming and I always wear gloves when trimming/taking care of the plants.
From what I understand the test only checks for THC that has been metabolized but I wanted to get the experts opinions on that. What am I looking at here?

"To rule out the possibility of external contamination, the testing labs (where appropriate) looks for both parent & metabolite (bi-product) of drug usage. For marijuana analyses, they can detects only the metabolite (THC-COOH) . This metabolite is only produced by the body and cannot be an environmental contaminant"

if you have long hair and haven't cut it in years ...your hair is a timeline get a baldy...... then grow it back.... your safe

Trimming wont get thc into your system