To my own knowledge on buy the Dip,and HODL.it has to do with investing buying Bitcoin and keeping it is one part,people feel is just buying Bitcoin and hodl.but on question to ask how patient are you to hodl.your patient might not be the same of mine.so it takes discipline on the highest other.and mind you you don't invest on Bitcoin with you all of what you have,cause you will definitely can not be patient.if am not mistaken I feel with my own experience investing in bitcion.is better you have some other asset to fall to daily,and keep you mind lost out of your bitcion investment.And just stay and observe for as long a you can.
Since bitcoin is a long-term investment, before people invest their money in bitcoin, they should be able to figure out the amount of bitcoin they want to accumulate and how many years they intend to hold their bitcoin so that they will know how they can discipline themselves to accumulate bitcoin in such a way that they can easily hold their bitcoin for the long term without passing through difficult times to do that. It is even advisable for investors to invest in bitcoin with the money they will not need for 4-10 years or more or with the money they can afford to lose so that they will not depend on their bitcoin investment to survive since they won't be using the money that is meant to cover up for their living expenses to invest in bitcoin.
No no, you are actually getting it all wrong here, it's true that Bitcoin is not risk free investment, it's as risky as every other investment out there, but it risk is very much minimal because longer-term investment like Bitcoin that appreciate in value overtime has the higher probability of making a fortune for you if you have a very good stash of it, but when talking about it risk, you are totally wrong, Bitcoin is not a alt or meme coin that the risk ratio is even higher, you can't classify Bitcoin as a 50/50 when it comes to risk, because you are more likely to secure your future financially in the longer run as a investors in Bitcoin, than the loss you might incurred.
Then as for the terms you are actually using,
money you don't need, I don't think it's appropriate, the right terms to use is money you can do away without for a very long period of time, because I can tell you that no matter how small the money is, as long as is what I worked for, I need it, because it's my sweat, so know the difference.