I'm nearly 18 and i want to grow a beard, how can i?

Don't shave!: In reality, there is no reliable way to make your beard grow faster. Make sure you are optimizing your health, in regards to eating well, sleeping well, minimizing stress and your body will do the rest. Remember, everyone is different, some people grow a full beard easily, some it's painstakingly slow; some people won't ever grow a full beard regardless of what they do.

Give it time: Around 5% of guys are never able to grow a good beard. If you're horny and getting good erections and ejaculations like other guys your age, your being smooth is just your physiology. Many women say they prefer a smooth man; Paul Newman was the male icon of his era and was super-smooth like you, and I don't hear Justin Bieber complaining. Smooth guys almost never go bald. Embrace who you are.