I may not agree with you when you said "Be greedy when others are fearful" because it will definitely lead you eventually to your downfall. I think it is the best time to learn more, share more and buy more.
Learn more because we can be profitable now even the market is unstable.
Share more because we can share our knowledge to our colleagues so that in some little ways, we can make find a way for us to survive from this bearish market.
Buy more because it is a good time to buy good token and coins.
It is very possible to learn more about crypto currency and its terms
And its is also easy to buy more tokens after you must have learned a lot about crypto currency
But the most difficult is sharing more
People keep things to their selves a lot and thats why some laugh while some cry