Hodling requires a lot of patience before profits can be achieved so if an investor cannot be patient to withstand market fluctuations it may lead to losses by selling when the price is low due to fear of the price crashing further.
First of all we need a well integrated portfolio to gain profit and to create this portfolio a lot of patience and there must be continuity in purchasing. My idea is that every investor who wants to start investment in Bitcoin should know that Bitcoin is naturally unstable, So if they still can't tolerate market fluctuations, that is can't be patient even after knowing this, they lack knowledge about the proper investment process.
Even if an investor bought Bitcoin at the peak and it never come back stronger again in that cycle, while not wait for another cycle to get the profits since it is almost becoming a tradition that the price of Bitcoin is likely to increase pass the previous ATH in every cycle.
If an investor buys Bitcoin at a peak even if it doesn't become strong again at that time, he should still wait at least two cycles to take his investment to a stronger position. Moreover as you mentioned, there is a possibility of exceeding the previous ATH in each cycle which is a somewhat inconsistent sentence because we have seen in Bitcoin history that after each Bitcoin halving, the price of Bitcoin has created new ATH. So even in this situation we have to try to be more patient.
https://www.kraken.com/learn/bitcoin-halving-historyYou said well, however the image above can be used as a form of motivation to keep holding, looking at it gives hope cause it shows how bitcoin has increased over the years even though it portrays the price per btc at halving. For those who think holding Bitcoin is tough, yes it's not very easy you'll undergoing temptations, that's very sure but holding for a longer period is very possible, it's something that's realistic once you make up your mind to be patient and disciplined with it. Sometimes when the going gets tough, you get tougher by dating back to the history of Bitcoin and how great it's shown and proven it's potential over the years to this point, that alone would motivate you to keep going, on the other hands be sure to have a stable income too, it matters alot when it comes to holding for long-term.