There is almost always a major blip for whatever reason and we have learnt to expect it and not to panic.

I bought stuff at 3.5 cents once and I thought it can’t go down to zero. It can.

Protect the downside. Worry about the margin of safety.

The price must be less than one half of the former high and preferably at or near its all time low.

There will be losing years; but if the art of making money is not to lose it, then there should not be substantial losses.

Sooner or later, the market will do what it has to do to prove the majority wrong.

Try to pick a fund manager who has a well-defined strategy, has been through these things before, and go invest and stay with him.