If you think it's tough going through the teens years, then take it from me it's no picnic going through it again with your kids. In fact I have only one piece advice to all parents: remember you were young once.
And as I frequently tell my kids: there's nothing you're doing that I haven't already done - so don't bother trying to fob me off with untruths!!!
Having said that, it's still hard to watch them make the same mistakes, although at least they do confide in me in a way I never would have with my parents.
Their father doesn't see it like I do, and is continually saying things like: 'it wasn't like that in my day'....... maybe that's why I write young adult fiction and he doesn't!!!