Any tips??

Being concerned about the wellbeing of other adults is absolutely fine but being anxious to the point where it affects your wellbeing is not. The only thing you can do is reframe the way you think. So rather than think "I can't stand it when X goes partying because something terrible might happen to them and until I know they are home safe, I can't relax", you could think something along the lines of "I would prefer it if X didn't go out partying which causes me excessive worry because terrible things can and do happen out there in the world but I accept that this is not a reasonable or realistic demand. So when X goes out partying, while it is OK to be concerned for their wellbeing, I accept that (a) they are a free agent and make decisions for themselves and (b) I have no control over what happens when they go out". The point here is that your worrying has absolutely no impact on what happens when X goes partying, so it's a waste of time and emotional energy.