Angry [Q] I think some help is needed in urgency and wisdom

Hi everyone

After a lot of reading i decided to install a ROM. Now i was able to try to but none of them worked, so i ve been trying now for 3 days. I think i did it all as stated in this forums, it launched but never go to really open the OS, used to get stuck at the motorola or nexus logos or what ever logo from the different ROMs i downloaded.
I was able to go back to the original ROM but today im not being able to do so...
What can i do? Im at recovery and im able to restore boot but at system it says:Error while restoring /system!

I had it backedup at pc so i have also removed the one at sd card and tried with the one from PC.

What can i do (that doesnt involve getting another phone)