Before a person can be fully involve in long term Bitcoin investment he or she must first build a high Level of patience because the key to long term Bitcoin investment is being patient and also having a good source of income.
Now without this two things I just mentioned is impossible to hodl for long, when you don't have patience there's no way you will leave your Bitcoin in your wallet without dipping hands into it and if you don't have a source of income surly you will be in need of money and since you don't have any source of income you will dip hands into your Bitcoin and solve the financial issues you have.
The ability for an investor to exercise a lot of patience why hodling is dependent on the level of in-flow of money and how consistent it comes and if there are plans on how to manage the income such that the discretionary amount being invested cannot be tampered with since provisions has already been made about any unexpected and unforseen expenses that may come up in the future. If a hodler must maintain a high patient level during their time of investment then they must make sure that they are strict and disciplined enough not to mismanage funds for emergency needs and shouldn't also rely on one source of income, there is need to be versatile and have alternative sources of income.