how much more may go down or market will recover form now? if require how many time require?
what is good for now, buy or sell? my tendency is, if more go down, i will sell now or if not go down start to recover from this price, i will buy now.
No one really knows the answer to your questions. What I suggest is to do dollar-cost-averaging on this dip if you still have money to buy because if the price goes up but you sold your coins thinking that the market will dump more then you will just lose more amount of that coin when you buy it back at a higher price. If you are not able to buy now then just hodl it, this is not even a bear market and some of us patiently hodled our coins way back 2018-2020. There is no reason to sell at loss.
indeed, to hold is a good choice in a market like today, but not everyone can stand it. like the previous example where bitcoin had touched the $ 3500 mark, at that time many people were frustrated and incurred huge losses. therefore strengthen psychologically for the sake of something that has been planned