Discussion I want to CBT but I'm dumb

[Mx_Pathetic]

I'm still looking at different methods on how to CBT and I thought the gas method would be the best one for me (painless and somewhat peaceful) . However i am to dumb when it comes to knowing numbers and stuff so I don't understand most of it. That then leaves me with hanging or drowning as my last option. Drowning I'd have the risk of being rescued, however hanging, I can easily time it on a day I'm completely alone. However I'd need to do more research on those methods. I can't do SN as I can't get it in Australia unless I work at a school or lab company, I also don't want to steal from people. If anyone could dumb down the gas method I'd be very thankful.