Laugher:
Expect that you will always, over time, see two steps forward and one step back. And every decade or so, you'll experience one somewhat painful period where you ge hit with two steps back. At the very least, you simply sit through this period, knowing that it will almost certainly be temporary. At best, you use it to add to your investments, buying low for the next 30 or so years you hopefully have left. Either way, you or those you care about will benefit. 
All the best,
SFI