I can say that there is actually no RIGHT TIME for anyone of us to invest. We can't predict and know the future of anywllays. But I can say that you may invest now since we can notice that bitcoin is keeping on making it's price higher and higher.
while there is a good time, we better take advantage of it first.
like now there is a good opportunity then take advantage of it, do not think forever later sometimes we miss this good time.
Well, right now, it's pretty green. So, obviously it would have been better to invest when they were super low (e.g. january).
But of course, if you're going to be hodling for a few years, it's not a bad time to invest now.