Having income that exceeds your needs or having additional income because it is not enough is a choice that must be made in any form of investment, including Bitcoin.
Because in this way the investment made will run well and will also be able to meet important needs safely without having to experience difficulties due to forcing oneself in unsupportive circumstances.
you don't need to have income that exceeds your needs before investing into bitcoin. If you are waiting till you have excess income that's above your needs before investing, you might end up being unable to invest at all because needs will keep coming whether you like it or not.
Making investment into Bitcoin should be part of your need so that way, while planning on how to make use of your monthly earnings, you can easily incorporate it into your plan which will make you to have a steady Bitcoin accumulation routine.
One of the easy way to go about this is to possibly set out your needs into orders like the one below and set out a percentage of income that is to be assigned for each of them based on their respective cost. The list could take something close to this;
1. Food
2. House bills: which will include all the family expenses like transportation, all the utility bills, data, etc
3. Emergency fund
4. Funds for investment: which would be the amount you've set out for the monthly or routinely purchasing of Bitcoin.
5.etc.
Setting up stuff like this will not only help you accumulate your
BTC easily, it will also help you effective plan out how best to manage your limited earning and live in proportion to your worth.