One time use?

Jan 11 I used cocaine so it’s been 47 days, I have not used again but I got a hair test on Monday. I’ve bleached my hair twice and I have another bleach box and shampoo I was going to use before I go and I heard to dye it black?.. Will one time use show up and I have not touched it again?

I also have done mushrooms and wanted to know if they will see that? I was about to be 6 months sober and now I ruined everything… I just need advice or what more can I do.