This is your freedom. If you want to regret it, then regret it. No one can deny your right. But I still want to say, be patient, don't lose confidence in the cryptocurrency because of the low price of the moment.
at the moment the price is down and that is normal for all of us. always believe that prices will rise and don't be too pushy to sell all your altcoins. sell partially and invest the rest for the long term.
Better not look into it at this moment, when BTC and ETH arise it will sure to follow all alts better not think of the past and just know that everything will be fine after. the market will soon to recover.