This is one of the hardest ages for raising kids. They think they're grown, but they're still so lacking in life skills. But it sounds like yours are doing well and you've got reason to be proud of them!

My daughter went through a period when I thought she'd join a cult after she went off to college. Then my son dropped out of college because of his girlfriend. But it all eventually worked out.

Now is time to focus on cultivating new passions in your life, which I understand is harder as long as they're around. But it's your time.