Hello So I Did The Worst Thing Ever Against Every

Hello so I did the worst thing ever against every thing I believe in and now I'm worried cause I have a drug test okay so about 1week ago 3days I took 3-5 toaks on a joint I don't feel any thing at all so I don't know if I did it right my size is 5'4 and weigh 116 pounds my wee colour was a dark yellow weeks back but today when I had the drug test its was like water does this mean I don't have it in my system I'm kinda worried this job means every thing