ATH price of Bitocoin was 19934 USD at 17/12/2018. Can this year it will cross ATH .
What is your opinion about this

I hope so, we will wait for that and I'm so excited for that to happen. In this December or January maybe bitcoin will reach another ATH price. Many Bitcoiners are regretting that they not holding some bitcoin at a low price before. So for now, its time to forget the past, concentrate in the present and focus in the future that bitcoin price will get a new ATH.
This is a good idea. Those who buy at ATH and keep those tokens will eventually be able to get back money. If you look at what happened during crash days yesterday and the day before, victims have recovered their money.