Welcome to Steemit @joao-cacador ! Cool Work you're doing there! I hope you like steemit!

Here is a post where you can learn how to earn more money on Steemit with and without investment.
https://steemit.com/minnowbooster/@cryptogainer/how-to-increase-your-steem-power-with-minnowbooster-and-minnowsupport