Well a lot of new investors that just started to invest last year now experienced a bitter lost, a lot of them frustrated because their investment decrease more than 50%, but for the early adopter we see a good rising price, although this year got a bit stagnant but bitcoin seems on a good track
Those who are frustrated did that because they never even took the chance to understand the reason why they are investing in the first place. Not like they had no reason but it was a wrong one, considering that all they were after is just a way to want to get rich over night.
I believe if most people took the chance to at least try as much as possible to ensure that they are well informed with what the past held, and where we are now and the possibilities of a great future, they will never have any reason to be frustrated and worried. Like you said, in your last sentence, we are still on a good track, as at least, where are not where we used to be and that is what I call progress.