Do you regret it ?
or do you believe BTC will create a new ATH ?
Regret it nearly every day

I daydream about selling it

I of course believe BTC will create a new ATH
(in 1 to 3 years)
do not see the price of bitcoin every day so that you are not confused and sorry. Bitcoin prices go up and down so fast, so it requires very appropriate consideration to sell and buy.