Just jump in and don't worry!
It is time to buy bitcoin if you have money that you can wait for a long term without selling. Also you can buy other altcoins that you trust. Because many of them have low price now. But after months we all believe that they will go up and increase.
Yes it is, this month february is the best time to buy altcoins that prospectively earned a lot once the bitcoin and altcoin have recover in all this biggest dip value. A promising value of bitcoin this year that surpassing the record of 2017 highest value would be the most awaiting surprices for the people who believe to the potential coin they invested.