HELP! Repeating faint lines on drug tests

Hello I am new to the site and have been an avid reader for the past month. I have a great job opportunity and don't wan't to mess it up. I have an average metabolism (I gain if I'm lazy and eat and lose if i watch it, big flucuator). In the past I was an infrequent user and passed preemploy screens with detox drinks and not smoking for 2 weeks.
Heres the situation,
I started smoking daily since last summer. After studying methods on this site and taking a home test on day 22 of being clean (no dilution or masking just naturally) I got a faint line. Day 30 I got a faint line with 3 glasses of water and vitamin water. Then I followed the dilution method and got a faint line again. I'm so frustrated and this is a really high paid job with its own lab.. so I have been clean 32 days and still counting faint lines on at home tests with the test tomorrow afternoon, any words of wisdom?