What are some good ways to masturbate?

Im 13, i i now alot of people would thinks thats way to young to be thinking about this but its my choice if your gonna judge don't bother posting please. thanks But back to my question i need to know a way to masturbate that is not noticeable the only thing i found that works is the shower head but thats not really discreete. I don't wanna use vibrators but i don't know if im doing something wrong with the hands stuff cause i can never get anything out of it its kinda wierd any tips would be helpful thanks!