Modest doubt is called the beacon of the wise.
It may be enjoyable to occasionally dream of how you'll solve all life's problems by making a few million dollars trading the markets, but deep down you know it's unlikely to happen. It's hard to make that kind of money under most market conditions and without sufficient investment capital. In the end, that kind of thinking will just get you discouraged. It is important to identify such flawed plans and make them more modest and realistic.