The thc lines are always faint on those test strips. The control line is usually bright.

It looks like you should be clean enough to pass the test know. I would just relax and test yourself first thing in the morning of your test. If your not sure about the way the test is just do a basic of the dilltion sticky. Drink 40 ozs of gatorade,piss a couple times before the test and take your midstream piss.
Just be sure your not drinking tons of fluid from now till the test. Just drink regular