First of all I am very sorry what you have been going through currently. Our forum is strictly moderated, thats why the posts are not published automatically.
Further to your issue, that you are facing, it's better to stick on to your native country firmware.
Also from your latest post I got to know that you are currently in boot loop. Please follow the below tutorial to resolve the bootloop issue.
http://www.samsungsfour.com/tutorials/how-to-resolve-android-boot-loop.html
Please don't worry your tab will be fine, if you follow the above tutorial correctly.
Kindly revert back if you face any further issues, also please continue with the same forum thread and please don't create a new post in the future.