I really disagree with you with this your statement that it doesn't matter if you have a steady income or not, and if you don't prepare for the days you will be in lack, or in serious, there is something i will love you to understand in Bitcoin investments and both outside here that you don't know, if you don't have a steady income how do you sort out your discretionary income or more of having an emergency fund, so brotherly you should know that for you to succeed in Bitcoin investments and also outside here you should have steady income that can help you sort out your discretionary income and emergency fund and also help you have a prepared planing on how to go about your investments.
Even if you plan to sale a plot of land that can give revenue as wise man you still use the money to start up a business that can be given you a steady cashflow and still you sort out your discretionary income from there, so that you can still invest and be alright.
I don't think the profit from investment can be a stable income, because you can't guarantee that the profit will always come from where you invested. Because in investing, there are both profit and loss.
Rather, you can do this whether you are stable or not, when you have an opportunity to earn a part of the money you earn when you have some money left after meeting all your needs, you can invest in Bitcoin.
For example, suppose this week you have $ 100 left after excluding all your expenses (primary needs + emergency funds), you can invest it in Bitcoin for the week.
Again, if you have no money left after excluding your primary needs and emergency funds in the next week, you don't need to invest in Bitcoin for that week.
Again, suppose next week you have $ 50 left after meeting all your expenses, you can hire Bitcoin AB.