Possible but it depends as well. How deep is your knowledge of particular sports that you are going to bet? And then the risk factor as well, maybe there are days that you become so 'unlucky' that you don't hit your bet, so there's no income for you. So it's like trading a well, sometimes to win, and sometimes to loss. So if this is the way to bring food for your family in the table, then I would advise to look for better options to generate a regular income.