This was a high cost of opportunity as Bitcoin's growth is impressive, especially in 2017.
we are not yet at the mass adoption stage where bitcoin is at its full potential so now and for more years we are still early adopters.
besides the 2017 rise was impressive but was not at all the biggest. we have had more impressive growths in the past. the number (ATH) is big that is why you think it is impressive.
I'm enjoying this joke and it's that maxim ... Only invest in BTC what you're willing to lose. I do not invest in BTC by expectation but by the promising and disruptive future! Everything is an ideological issue and I am comfortable with this movement.
i think you are overthinking everything and also you seem to be caught up in the price movement so much that you failed to learn more about bitcoin.