You will not earn anything much from voting until you have a lot of Steem Power (thousands), but I think you should still do it to show support for others. Resteeming earns you nothing as all rewards still go to the author.

You can earn by writing good comments and by writing posts. They can be about anything. Make it fun and you will want to keep doing it. The money will come in time. It took me months to make anything much.