I would also like to add that you should always remember that you need to leave money for everyday expenses, because many investors make a mistake: they want to quickly accumulate more Bitcoins, and therefore allocate too much of their Fiat for buying at DCA, after which they do not have enough to live on. And they have to withdraw cryptocurrencies back into fiat, and such an approach partially ruins the idea of measured and correct accumulation of digital gold.
It is also imperative not to forget about security in terms of programs and phishing.
This is one of the reason that a new investor should only buy bitcoin with hi discretionary income that he will not need for a very long time in order for him to be able to continue buying bitcoin weekly or monthly regularly and hodli for long with DCA method, persistently and consitently for 4-10 years and above. It is good that before buying bitcoin you should be able to figure out how much is your discretionary income first, so that you don't go and use part of the money for your mnthly exp