College students have reached the age of 18, have full capacity, and should take full responsibility for breaking the law. So according to the traffic law, driving without a license, you will be detained. Driving without a license's punishment is a fine of 200-2000 yuan and administrative detention of 7- 15 days. Of course, detention will also be included in personal files, but administrative detention is not a serious fault.

According to your description, it should be that he is on the outside and you overtake on the inside, which is illegal. He collided with you in the middle of changing lanes, and you took the primary responsibility, and he took the secondary responsibility. You have to bear much more losses in the accident, and he has to bear some. If you hadn't called the police, you would have settled it through consultation. It's no use calling the police now, because there was no serious accident at the scene, and you will be more sympathetic to the injured traffic police, so you should not be given a detention order again.