Never look for exact time , instead you must schedule your own decision time when to sell, Know what? you are only showing how Greedy you are for looking about the highest gain you can find but once fails then cries allot for losing.
Sell when you are comfortable with the price no matter if this will increase tomorrow or decreases tomorrow.
set your own exit plan and not relying on observation .
I think instead of time it could be price. That way whenever that price hits then you can sell and you will be fine. I have my own goal, I want to have enough money to retire and never work again, well maybe work for fun because I like my job more and more every day, but I want to work not for just money but for fun, I want to be able to not work and still have enough money if I want to.
I do have a number in my mind for that and that is why I keep saving money and putting it in crypto, lately it has been quite difficult because of some life stuff happened in early august, but I am doing much better now, and that is why I am quite happy with the life I have right now. Just accumulate more and more and more crypto until one day the fiat amount is good enough to retire. That way I do not have to worry about ups and downs, they are irrelevant until I reach that number.