I'm a new driver and haven't been insured for long. I was driving past a car in a tight space in 2nd gear and all of a sudden i heard a sound to which I didn't pay much attention and I drove off. I looked back and the car had stopped, as I was in a hurry as I was doing school run I drove off and I later realised my wing mirror had been hit and it had been damaged. After I had dropped the kids to school which took about 5 mins maybe less I went back to that road hoping to see the car but it had gone. I'm quite worried the person might've taken my reg number and might make a claim! I've only been insured for less than a month so I'm quite worried. I really don't know what I should do, any tips?