It is really hard to stay positive especially when you bought right the top or near the top. It seems that you cannot recover anymore if you have negative thinking and maybe for those who were hyped and just entered the crypto world during that time, half of them maybe sold it at a loss and moved on leaving the crypto world totally and the remaining ones just hold on to their coins hoping for a comeback and eventually be in profits. The ones who borrowed money to invest in bitcoin may have some problems already on how to pay their debts so they have no choice but to sell it and find other means to pay for the balance.
I always believe in the power of positive thinking because I have witness it not only in crypto but in other aspects of life. If you have problems then you will not be able to solve it by just sulking and accepting the fact that you cannot solve it. There would always be a way if you remain positive. In crypto, if you just continue to trade then you would have learn more and even if your portfolio is at a loss then maybe after some time , you will be able to get back your losses by trading slowly.