Post [Q] Appstore broken

Okay i have ****ed up my kindle pretty badly. After successfully rooting my kindle fire hd & 7" (2013 version), i decided to try to install google play on it to replace the amazon appstore. Anyway i downloaded a group of files and ran them while my kindle was in fastboot mode, but the google app store did not install, and now the amazon appstore will not download any apps. Has anyone encountered this problem before, if so, how did you fix it? Also if anyone has successfully installed the google appstore please give me a link to the files if you can. I'm not actually that sure of what to do with the files so any basic instructions would be greatly appreciated. Thanks