1) yes
2) yes,alcohol is a depressant
3) yes, and with some1 u care about and that more Xciting
4) U ur just need 2 pactice retriant which u will learn over time. U can do this by masturbating till ur but 2 cum and stopping.
5)Yes, I would leave or cheat. Probally cheat. If u don't learn 2 control this sex bcums 1 sided, and makes ur partner feel like her pleasure doesn't matter.
Question for u, does she have a orgasim?(maunal mastrbation or oral b 4 u 2 have sex?) Try it will a comdom. Ur can buy creams to numb ur penis some. U can also slow down and just kiss or switch 2 giving her oral sex when u start 2 feel like ur ready 2 come. Masturbate a few hours b 4 u r gonna c her.