What can A guy do to make himself not finish too early during sex?

think of anything other than what you are doing at the time but you might suffer from pre mature ejaculation so you might wanna get that checked out to use a cock ring try Viagra there are lots of things and most of all control if you can control your self then that would work too..another thing to try is if u masturbate a time or 2 before actually having sex it might make you last longer try those things ok