Whats the easiest and quickest painfuless way to slice your wrist with a razor blade?

I'm not trolling I want to find a easy way to commit suicide my mother won't let me buy a gun I already tryed overdosing on 2 bottles of pills a few weeks ago im tired of walking around with cuts on my wrists and living this life i am living what is the quickest way to commit suicide should i get nice and drunk and take benzos AND pain killers then get a razor blade and go down the street not across? Thanks. do you have to cut one vein or all these stupid ******* veins that we weird human creatures have?