Help Using Cure Salt?

[golaxation]

I'm looking for something painless or at least pain that I wouldn't feel. The first time I tried dehydrating myself on a hike, then I mixed Benadryl and wine but was too scared I wouldn't pass out from it and instead would feel everything, then I tried to overhydrate myself and nearly succeeded - headache, dizziness, and everything - until I threw it all up despite taking dromamine, and now I'm looking into SN but it's hard to obtain quickly. I want it asap, but then I saw on Suicide Wiki that you could use Progue #1 cure salt. It's likely I would also suffer the effects from salt poisoning but the wiki suggests I wouldn't feel it because I'd be out (and likely dead) from the SN first. Was wondering if you thought that was true - the part about being out from SN that I wouldn't feel/experience the effects of salt poisoning? Thanks for your help!