How to jailbreak iphone 4? And should I do it?

I'm bored of my iPhone but I know if I jailbreak I will love it again lol! I just don't know how. I'm 16 year old girl so I need some easy steps on how to do it please! And I also want to know your opinion on weather I should or shouldn't?

No it might break your iPhone my friend did it and it shut off and didn't turn on apple turned it on for him but all his pics and apps deleted and he had to get a new apple I'd so don't do it or else it might break.