i am not sure how to proceed from here.
if you want successful trading you better believe in something you do when you buy bitcoin at prices close to ATH.
if you trade with doubt you will panic when the price dump a few % and you will experience a loss. but if you experience a loss it doesn't matter, it should be a lesson for you to be more careful when buying coins
We all know buying at/near ATH is not the best move.
trading has a high risk when you place your money wrong. so when you want to buy btc you need to set a strategy so that when the price drops you don't panic and are full of doubts.
if i see, it seems that you are still hesitant in trading.
my suggestion is that you better buy another coin whose price is lower than btc.