The easiest way to avoid regrets is to ask yourself this question, "If not now, when?" It's a powerful way to put life and our decisions about how we spend our time into perspective"
Don't underestimate how much just your presence can make.
They likely need someone just to vent to. They may even need someone to take their anger (the actual manifestation of their internal fear). You can stand by them. So sorry for all of you.