Should I apply for a job I really want even though my system is full of pot for the next maybe 4 to 6 months?

For the longest time thats all I did was smoke pot. I know it takes forever for marijuana to get out of someones system. I could take a Vales Cleanser but there is too much at stake for that not to work. But do you think I should still apply even though my drug test would almost 100% come back positive or am I just S.O.L. this time around.