If you weren't charged in court, then you SHOULDN'T have a record. They're also very much suppose to tell you.
The Youth Criminal Justice Act is meant, like the YOA, to basically help out kids and give them a second chance. Most issue's with youths are the fault of the parents anyhow, or some other factor such as friends. In either case, they wouldn't give you a criminal record for something unless it was major and you were a danger to society(Or you had committed a multitude of offences).
In any case, if you did have a record you'd HAVE to have gone through the system in some official form. Police try to avoid sending kids through there, and you don't sound particularly troubled so it would have been a waste of money. Paying back damages and such is just a police way of punishing you without actually screwing you for several years with a record and such, and saving thousands in court fee's.
In either case, I'm very sure you don't have a record, so don't worry. If you want to be REALLY sure, call your local police detachment, or the RCMP if that's the case, and they'll release your record information to you (I think there's like a 25$ fee).
But yes, the fact that your unsure of having a record, and you didn't go through court, means you don't. You would KNOW you have a record if you did, IE: Can't travel out of the country easily, and a bunch of other restrictions you'd have caught onto by now.
Anyway, don't flame me, I'm a criminology student graduating this year, so I do have a bit of knowledge on these things.... In any case, there is a chance I could have a fact wrong (Although I just checked a textbook to make sure), so you should indeed call and get a copy of your record. For peace of mind at the very least...
~Jeff