Since a student sometimes has to study as well, today only some quick advice:
Before you try out one of the ways I mention, do some research. Some people are really naive and other people will take advantage. If a site offers you $10 dollars for each question you answer, some bells should ring. The more the site says “get quick and easy money”, the more you should worry. In doubt just google “site scam” and the first results will usually tell you if it’s real or not.
Certainly do your research on topics you’re not familiar with. If you don’t know how to make a certain account or how to write blogs and stuff, do some research in advance. This advice will become more and more important as we get some money to invest or gamble. Don’t rush to the poker or betting sites when you just learned the rules. Think before you do, a plan is always your best friend.