My parents love and accept me but they just don't understand how I feel. especially the dsyphoria.... They'll tell me "not to stress about" my gender but I can't stop "stressing about it". also they still call me she even though I told them I don't like being called that. any advice on how to help them understand how I feel?

I'm at the same problem (with my dad especially) but I think going the letter route might help. You get to pour out your feelings, have them read it. After they have read it, they can mull it over in their heads and gives them an opportunity to come back to you when they are ready.

I've been linking this article a lot lately whenever this question comes up.  I'm planning on using it myself when I get to that stage because it explains everything so perfectly imho.  Hopefully it will help others too:

http://darahoffmanfox.com/gender-transition-how-you-can-help/

Hope that helps hun <3 *hugs* <3

Kira thanks for the link.
OP, I think it's hard for non-trans people to understand gender dysphoria as anything other than "anxiety" or "stress". There are a bunch of articles online describing what dysphoria feels like; maybe if you use one of those as a starting point to write your own experience on paper and give it to your parents, they might start understanding that this is more than your standard anxiety and that there is a solution that will bring about relief.