Savings for investment and savings for emergency funds should be separated, and make sure that if you save for investment, you will only risk an amount that you can afford to lose. But I have to agree that if you want to prioritize bitcoin investment, stop putting your money on unnecessary expenses. Sacrifice your luxury for the mean time. However, if it means compromising your budget for daily needs just to realize bitcoin investment, then I must say that you are doing the wrong thing already.
It's a strong reminder to separate our fund for investment and for emergency.
Please give me a chance to remind another thing. People usually mix up their investment and trading fund that is bad. An example is they use an account on a centralized exchange to store their bitcoin. It's a bad practice because centralized exchange is a risky place to store our bitcoin. Not our keys, not our coins.
It also contains another risk, they will mix practice between investment and trading and most of them will use all bitcoin for trading. They fail to hold part of their fund for investment because it's easily to make an order to take profit, sell than holding part of it.
My reminder is they must separate these funds. Investment fund must be stored in their non custodial wallet. Trading fund can be store on a centralized exchange.