My name is Paulette. I am a single mother of 3 boys (13,15,1

and I am having some issues with them. Need some suggestions on what to do. The issues are really with my oldest son, he is really weird right now. Wants to be an adult but also wants me to nuture him when it is convenient for him. As I have stated I am a single mother and my whole adult life has been caring for my children, how can you just stop being a mother in one day, not possible. My son has stated several times that I am too hard on him and he'll be alright. Granted he graduated high school, goes to a local college and also has a part time job. My problems with him is that he is running around like a dog in heat (I have went over safe sex so many times over the years, hopefully he has listened), he has friends that just get upin the morning and go to bed every day, the girls that he sees don't need any introductions. I have not met any of them because I have always stated to my boys don't bring mess to my house. I love my son, don't wanna chase him away, what do I do? People around me have said he'll be alright, but I feel trouble is lurking around the corner and I have replied with if he gets into any trouble I'll have to bail him out. Which goes with getting someone pregnant, going to jail, doing drugs or any of other horrible things that are running through my mind. Can't sleep at night thinking about his future.