That's great advice Talesin! DW - the unfortunate reality of being a minor in a cult is that your parents likely will put the cult over you. It's their cult personality that is blinding them. I'm sure deep down they are good people who think pushing you into baptism is the right thing to do.
This is a marathon not a sprint. Yes, the next few years will suck as you try to keep the peace but as Talesin said, focus on the future.
The other reality that you'll likely need to face is that your parents will likely shun you the same whether you get baptized and leave or if you simply don't get baptized and leave. There's a chance they would get over it in time if you don't get baptized but you should prepare yourself for that reality.