Where exactly do I aim my 357 to make it instant?

Can I use a sheet reliably? Or should I acquire a proper rope?

I bought an autoblow ultra ai. I’ve had it for about a week. My parents were down stairs arguing and I heard my dad shout at my mom. “You ruined our children with your soft ass parenting. No wonder anon can’t get a girlfriend and he had to go buy a jerkoff machine”. Not only does my father think I’m a complete failure as a man but they both know I bought something like that. Idk what to do. I’m afraid to leave my room. There is no way I can face them now