When cryptos fluctuates, never mind the right time to invest and buy coins. Always the current situation is opt to buy more coins. If you have enough money to invest on top listed coins, never stop moving forward in buying the best rated coins. Though they are good for short term invest, the profit earned out of keeping them is going to be much more. I wouldck better buy and hold back as many coins i can now.
exactly bitcoin is volatile and anything can happen in any day , bitcoin has already been here so many times and we already see what would happen in the near future , if you are a long time holder then dont hold yourself and buy as many coin as you can , you will profit over time and I am very sure to it