yes of course you have to be able to invest bitcoin right now by buying as much bitcoin as you can, so you don't buy and miss the golden opportunity. having bitcoin is very profitable and can make you rich if you can use bitcoin well.
Yes you should invest right now due to the market prices that is dropping so hard and you have the opportunity to invest a huge amount today in order to earn more profit in the future when the market starts to pump up again.
It is very considerate to analyze its market trend. Our market seems to be tricky and it needs more time to understand its flow. A lot of newly investors loss their money just for a wrong forecast and don't have enough time to focus in their trades. To avoid that certain scenario, you better check it everytime and do selling when you have profits even in small amount and buy again once it dump.