More than 50% of the world population gamble in one sport or the other and some are making good money while some are still hoping and praying for their luck to shine.
Gambling is for entertainment and not a business or a job. It's based on luck which makes the chance of you winning your bet very slim. If you need a source of income, you should go get a job to provide for your needs. Gambling will take the little that you have and if you continue chasing your losses, you might become addicted. However, a lot of gamblers think that gambling is a means to make profit.