if you just want make $10 / month, you can get it from faucet. do not bet your coin from faucet, because very hard to collect $1 from faucet.
Yeah I think if op only wanted $ 10 per month, faucet might do. But the faucet is not a steady income I guess. And in the investment world nothing is stable in my opinion, the most excellent way is to work in real life. With the work you will receive steady income every month, and you can invest it in bitcoin and make it as extra income.
for OP, gambling is not the activities that can be relied upon to seek income. If the look, just be spending all of your bitcoin in vain.