An investor should have his mind on a long term investment plan, before he venture into investing in bitcoin. He can achieve this by having a bitcoin target as his goal, so that this will keep him more focus and consistent on his bitcoin accumulation. Since he has that on his mind, he will not think of selling when he sees a little profit from the price of bitcoin, because he has not reached his bitcoin target.
of course no one ventures into any business without setting out investments plan and strategy that will guide him all through and same applies to Bitcoin investment because before venturing into bitcoin, you should be able to do some technical checks and balance to know if actually you can be able to maintain the same energy you started your investment with in the long run and when we are talking about Bitcoin investment we are talking about the future and in the long run so it requires patience and control of one's financial education to be able to excel within the time frame you wish your investment to approach.
I know that now that Bitcoin has gotten a new ATH before halving a lot of investors may be afraid of coming in because they may feel that since a new ATH have been created that it may not create another new ATH again but looking at the corrections that was made after the new ATH and to see that the price is hovering around $69k and $70k is a sign that we should expect something bigger after the halving of which every hodler is looking forward to it. A long term hodler doesn't look after little profits within the short term but he focuses on the bigger picture in the long run.