You must have been told, or you must have read it, in fact, you should have known by now that it is not just about putting money on any coins here, it is about seeing which is worth it, which will more for if it is for the long term. In fact, investment here is all about long term ones. This is no ponzi scheme. There you could wait few days or weeks and get paid. When the idea of getting paid daily is erased, then, one can embrace this cryptocurrency. You could invest and hope to sell in 3 months time. The price could have fallen badly by then. What do you do? You hold and wait. Learn through basics of investment then, so that if it turns out otherwise, you would be well prepared to face it. Preparing for the best and expecting the worst thing in the same way.