Yes you can make good profit, but if you have a portion of income per week like $40 per week you can invest $10 in bitcoins. This will reduce your financial risk which is much more bearable than months.
Having a portion of $40 per week and investing $10 worth of bitcoin will not reduce financial risk but rather adding more risk expecially when we have an epileptic financial system. bitcoin is a risky investment, so we must figure out a way of solving the problem of financial epilepsy sothat we can be able to be financially stable and invest the amount we don't need any moment on bitcoin, than using the amount you need urgently to build a good financial balance to invest in bitcoin and hoping that you are free from financial risk why you have already risked your finances in the cost of negligence. Why we invest in bitcoin is to HODl for a long time before we can make profit in the future not a quick money recovery system.
That means, we can invests $40 per month so that will be good for him to have Bitcoin investment. The thing is that we know how much we can allocates our money to invest in Bitcoin. We don't have to use more money if that will not works good for us because we must remember that we have many things to fills.
By manages our source of income, we can have a chance to make a profit from Bitcoin investment like others. If we can have a chance to earns more money, we can add more money that we can use to invests in Bitcoin so we will have the opportunities to buy more Bitcoin.