Hi, if you want to Jailbreak your Kindle, keep in mind that it is safe to update up to 5.13.1, further versions that might come are not tested yet. In your case, use airplane mode to ensure your Kindle won't be updated, then contact
ilovejedd via PM asking her for help jailbreaking your Kindle, and sending her the following information:
First 12 digits of your Kindle's Serial Number;
Country where you bought the Kindle/Or where it's manufactured;
Retailer/Store where you bought the Kindle;
Color of the Kindle;
Storage of the Kindle;
Does it come with/without special offers?
Is it Wi-Fi/3g?
What Firmware version is it running?
Is this version updated or it's what came by factory?
I'm not allowed to provide anymore information than these instructions.