Of course having money reserves is important in investing but I am a new investor and I want to invest all the money I have in Bitcoin. It's not that I won't have money in the future, I definitely will have money in the future and I can definitely keep some money in reserve for investments if I want to. I made an investment and made this sudden decision without much prior planning in holding that investment. Since now thinking about investment again, it will definitely be in my plan to have a reserve fund so that the investment is not irregular.
One of the things you most understand is that the possible factors that crumble investment is actually caused by poor investment planning so perhaps I will suggest that in other for you to last longer on your Bitcoin investment is never to invest all the money you have because if you do there is every possibility that you may not last long because there is no way you will not ran out of funds and you will be left with no option but to sell off the Bitcoin you already accumulated.
Since you are still new on investment I would advise you not to be too aggressive on investing on Bitcoin because if I understand you correctly it seem your strategy of investment is to invest all the money you have without a reserve funds and with the believe that sometime in the future you will have some money and then you will keep it as a reserve funds, actually that's a bad investment planning because if I may ask what are the chances that other serious need will not arise before the time you had in mind for the reserve funds? So actually the earlier you change your investment narrative the better for you, so perhaps instead of putting all the funds on the investment you could just cut it down by investing half of it using DCA method and keeping the other one as an emergency fund then if other funds comes up you could still cut it again and invest half because with this method your chances of tampering your investment because of other needs will be reduced.