This is to all newbies who wants to start their bitcoin long-term investment. It's good that you figure out how much you can use from your extra cash to invest in bitcoin from your income. This will enable you buy whenever you have received your income using DCA strategy. You shouldn't use money for your basic needs to buy bitcoin and start starving yourself or endanger your health. If you do that, you are only punishing yourself and gambling with your health because you will finally sell the bitcoin that you bought when you can no longer cope with the punishment.
How about buying bitcoin with our spare money, it's enough to risk for a volatile asset with which we can have rest of mind regardless of the market dip tosses we won't be forced to sell at losing in the fear of not wanting to lose it all to the dip.
From the little I know about bitcoin investment, you lose only when you sell prematurely, out of fear of market uncertainty but if you can hodl it for the long time range you can't lose but be in profit.
It simply about strategically risking what money in the amount we can afford to lose.
Using spare cash is also same thing as discretionary income, it's never a wrong decision to invest into bitcoin using your spare cash since it serves as your leftover fund.
We are expected to accumulate and hodl for long without thinking of selling in a short period of time, if there is extra funds you to accumulate Bitcoin aggressively it's also good without overly doing it in a way it will affect your bitcoin investment.