Hello Yasin, I understand very well your disappointment and the loss of your work is something difficult to digest, but understand that it is an accident.
I believe that one way or another is something we all knew.
I've known Una Team for a long time, it's the first "incident" that I see.
Everyone makes mistakes and no system is perfect from the start. The main thing is to improve things all the time. and that we can not go to Una team not to do it.
Please accept the help offered by Andrew, you can see that he cares about your problem, do not be discouraged
As Cem says, with experience you can do it again faster and better and in a week or two it will be a bad memory.
I think you had a great project in your head, I sincerely hope that in a few days, you will find the strength and the courage to pursue it.