Wait. Be patient. That's all you can do if you are a long term investor. Just don't look at the market for now if you cannot take it.
This will happen eventually and it's always just a question of "when?". We didn't know. No one knows. There might be those analysts that made the right prediction but those are guesses which doesn't have 100 percent accuracy.
The other thing you could do is buy more for a cheaper price then be patient again.