There arent trusted ways to you to be able to make a stable income with your investment on such low time. You can try sport betting or trading some altcoins but make 0,50bt each month sound a bit hard really.
For us to earn 0.5
BTC every month is really hard to do that matter, especially if you are a newbie in bitcoin world. About in sport betting can you me a sample of link into it? I wanna try to experience in sport betting. Thanks in advance.