Then you've done something wrong in the process, I would take a backup of your boot0/1 files now in hekate and pray to god you didn't fuck up writing to them since you don't have a backup.
Once you've taken a backup of them put them safe and do the whole thing again.
Also if you've not got a NAND backup of 7, take one now or atleast sys partition using hekate. Important ones are the prodinfo and prodinfof
if you have backups of boot0/1 and prodinfo/prodinfof and your BISKEYS you're pretty much solid although if you've fucked up your boot files with no backup...……..you've got a brick
Using choidujour as a noob was pretty ambitious
If I t turns out to be your boot files that are fucked, could possibly still work if the unique keys are present but will need to hex some stuff
Send me your boot files if you like and ill take a look