Hi Chermel...
I guess my first question is, how do you know your parents would "kill" you? Other than that, it would be good to find some type of support group in your area, or someone to talk to about it if you have such strong feelings. Although at any age, we all have our "stuff" to go through, transitioning pre-puberty, or as close to it as possible is a big help. There is also medication to help delay puberty while you sort things out..... So try to find somewhere where you don't have to go through it alone.
Opening up about it to someone (or a group) that you can trust will be a good way to start working through these feelings.