What to do if i have only smoked 2 times in the last 2 years. most recent was 7 weeks ago will i pass a hair drug test?

Depends what: you mean by "smoking" Not sure what you are smoking, how much and for how long during those "2 times". The likely answer is yeas it will be detected but I can't guarantee that. Best to quit using or seek employment in an industry not drug testing which is becoming harder to find.

Was it one episode?: In “Pharmacokinetics of Cannabinoids” by McGilveray IJ it is stated “Hair tests are more likely to detect regular than occasional marijuana use. One study found that 85% of daily users tested positive for marijuana, versus 52% of occasional smokers (1-5 times per week).