Just try to tell your parents that you don't want to wear the bikini for attention but just because you like the way it looks and I makes you feel good in your own body--but also show them this in the other aspects of the way that you dress and act, if they see you always trying to wear low cut tops and super short shorts or if they see you always looking for attention from guys or something that will play a big part in the decision they make to let you wear the bikini. Try to come to an agreement over something you like, like the bathing suit I the link:D.
Tell them that you aren't doing it for attention or for any other reason than to make yourself feel good. Tell them that you don't want an inapropriate one. Try no strings and a not low rise/low cut suit.
Tell them that you have been self conscience about yourself and now you are starting to come out of your shell a little and the bikini will help your confidence. Maybe they will go for it if you suggest those things. If not, then rock a one pice or a tankini.
Who cares if you wind up being the only one. You will look classy and still pretty obviously!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.