I am really surprised seeing the current situation of the market. Approximately, all he popular coin price is drastically falling. What is it symbolizing?? Should I do invest now or wait to see what happen?

Im not surprised since it is normal in cryptocurrency. I expect that each and every coin will drop and increase. But the good thing to do now is to invest more since it is in recovery state so it is better to buy cheap coin and sell it for short term if you want short term profit.