

You need to have a sit down with him. He’s 16 so he should be able to be take in whatever you’ll say. Don’t degrade him, don’t talk down to him or anything.
But tell him that he has a future ahead of him, whatever it is but futures also have different pathways to choose from. The wrong futures are the kind of futures where no matter how much devotion, ambition and time spent it is to drive towards a particular future, it isn’t that path. And that’s okay because the world isn’t over for him yet. The only thing your son is going to regret the most, is not trying more things while he has the youth and the time to do so.
That is key, is to try many things and see what really sticks.
I don’t make new years resolutions. Resolutions to me are to be continual, not restricted to one entire year. Plan to try and stop drinking? Don’t stop trying. Stuff like that.