Can there be anyway to prevent random erections?

Too many Erections?: One way to prevent the random (possibly embarrassing) woody is to increase frequency of sexual activity. For a time after climax, known as the refractory period, it is less likely that one will get a spontaneous erection. In some circumstances, libido can be decreased a medication that alters testosterone levels, but that would have to be a pretty extreme situation.

No: Enjoy being young, embrace the joys and responsibilities that go with becoming an adult, and learn to hide them.

Nature: There will be a day soon when you will not have random erections and you will miss them. This is nature. It is natural. It does not imply any medical problem or condition.