What is an easy way for a teenager to masturbate?

I am 14 yrs. old, and I think I am old enough to start masturbating. Whenever I do it at home, nothing happens and I seldom feel anything. I just want to know how to do it and if there is any lubrication that is needed. I can't buy any lube so that's out of the question. I've also tried lotion. What should I do to have a better experience when I masturbate?