Discretionary income is so important that if you don't have discretionary income, it is better not to invest. Because, if you don't have discretionary income, problems like changes in your standard of living and lack of daily needs can arise, which will hinder your long-term investment. For long-term investment, you need unnecessary or lose money that you will get from your disposable income after meeting your daily needs. If you don't have disposable income, it means that your income is not safe for investment. That is, your income is unable to meet your daily needs smoothly or there will be no remaining money for investment to meet your daily needs. Your discretionary income is essential for investment to be successful in the long term.

However, even if you don't have a source of discretionary income, if you have an alternative source of income, then you can start investing without any hesitation. The first thing to invest is to have a source of discretionary income, if not, then you can manage your investment with an alternative source of income. However, you need to make sure that you are able to lose the money you invest or you will never need this money. Investing requires having a discretionary income or alternative source of income from which you can prepare investment and backup funds with the remaining money after meeting your daily needs. Without a discretionary or alternative source of income, investing may fail to bring you positive results, which will lead you to become negative towards Bitcoin.