If you have a plan to keep a coin for a year, don't change your plan after a week.
I do not know what was your investment decision at this point, but for the future, remember that you do not invest when a coin reaches its ATH. It's always better to wait for the price to drop before buying.
That's right, investing in any coin when ATH has already occurred is a very wrong choice, because if you can get it at a lower price when the decline occurs, why buy at the ATH price where it just takes patience to wait, I agree with what you say this.
How do you guys mean here. At any point, a coin already has an ATH. So what you mean by not buying. Example with doge at $0.02 sometime ago was its ATH and Elon musk hyped the coin and it started growing to beat previous ATH and got another ATH ,kept taking out old ATH until it got to the current ATH. Again with other coins and bitcoin too before current ATH was previously at $63k but went above that to $67k , that is difference of $4k and that's some money that was made by some investors.