Gambling is risky.For trading you need decent money and good knowledge,experience.. Investing is ponzi is useless.What should i do? 
You don't need decent money for you to start with trading exact knowledge exact amount is needed you don't to have a good skills too while you are in trading you just need is to follow what other doing you can ask them or ask advices from them. Follow your gut make decision from your own.And if you are new to trading then its always good to start with a small capital to avoid huge losses and the best thing about trading that you can start even with a small capital and after gaining knowledge you can increase your capital.