As advised many times earlier too: Be cautious - Take stock - Realign to the changed economic environment/ developing market scenario and don't remain stuck or continue to catch the falling knives.
"Long term investment doesn't mean Buy and Forget"
Buy low but don't catch the FallingKnives.
And yes of course, sometime in future many of these stocks will not only conquer their previous highs but shall go much higher also. However, by then you shall miss far too many opportunity costs.