This is the key question here, am talking about the bold words in your statement, because what I have observed about Bitcoin investment is that if truly you have a plan of buying and holding for a very long period of time, and you truly trust in the capabilities of Bitcoin rallying back no matter what, or hoe dip it fell, you wouldn't even blink or even think of selling off your holdings if you invested with a money you can do away with for a very long period of time, because you know that you are not needing it anytime soon, but because any emergency situation can arises in the the future, that's why we make sure to make provisions for emergency funds, so that we wouldn't have to temper with our holdings due to emergencies.
For accumulating long-term investments, an investor should first have a good Knowledge of his financial situation. Those who are interested in investing for the long term will definitely be able to accumulate it for the long term if they have a regular income source. Those who have regulars income will be able to maintain Bitcoin for the long term and those who do not have a source of income will be able to maintain Bitcoin for the short term but will lose the ability to maintain that money later. Also, if investors can form an additional reserve fund to maintain Bitcoin for the long term, then they will definitely be able to maintain Bitcoin for the long term without any obstacles. There are many who try to invest for the long term in the beginning but are forced to give up their Bitcoin due to unfavorable circumstances. If a reserve fund is created, you will be able to maintain your Bitcoin even in the event of any accident.