For sure everybody will be recommending trading here and gambling for sure. So instead of telling you what you should do, I'll just tell you what not to do. Don't do the following:

1. Invest in hyips! (those that promise more than 1% a day? those are all fake! It's just a ponzi!)
2. Don't invest on those systematic/strategy/whatever gambling methods. (You won't profit from gambling. PERIOD.)
3. Don't trade, if you don't know what you are doing.

Best thing, probably, is just invest in casinos its quite safe and not much work to do. Just don't expect to double your money in an instant.