How do i p a drug test if i got high a week ago?

i smoked about an 8th of commercial brick weed over a 7 day period. the last day i smoked was new years day. i have a test coming up this friday the 9th. what is the best way to beat the test? i am 6'3" tall and weigh 165. im pretty scrawny and have a high metabolism with hardly any body fat. ive heard that dilution and aspirin is the best method and its worked for me before but i hadnt smoked as much weed as i have this week. ive also heard of using sur-gel for jams but i dont know if thats traceable. can someone please help me?