One of the problems with saving your money with a bank is that the small amount of interest you get from them right now does not out pace inflation so you will be losing money the longer you money is in the bank just because of inflation alone. You would be losing even more money if you account in the opportunity cost of the investments you could have made with the money while it is in the bank.
Exactly, therefore do not put all your money in the bank and don't think of an interest income because it is not enough to give you a
good earning. Your way to increase your income faster is to invest, where?
You do not need to go anywhere, cryptocurrency economy is very progressive, just invest by buying then hold it.