Hi, I'm new here and possibly facing a drug test from my school

(I already passed one by going clean for 3 months)
I have had marijuana twice recently (in relatively small amounts), MDMA once a weekend for a month or so, and Ketamine (although this isn't tested for)
Does anyone know about products that can be purchased in the UK for this kind of thing?
What if i can't find V05 with Aloe?
Clorox bleach isn't sold here, what should I use?
Any particular brands of hydrogen peroxide bleach to use?
And is the 'conditioner' referred to in previous posts the zydot conditioner that comes with the 'Ultra Clear' package?
many thanks