Think of it in another way. If statistics say that 90% of those who tried to cross this road ended up ran over and dead. Would you still consider it a good idea to cross ? Here is another reason why people fail, that they think the market is a mechanical device like an ATM, that you can just press the right combinations of buttons and the cash will come out. The market is nothing like that. It is made of flesh and blood. If you win, someone is going to lose his lunch or dinner money. Unfortunately for most people, they bet against the richest banks on the other side. The banks will certainly not lose the lunch or dinner money for the people they employ.
Imagine you are on the street looking at someone counting his lunch money and you try taking it from him, what will happen ? Taking money from those in the market is a bit like that, except those counting the money are the gorilla banks. The chance of getting hold of that glinting cash is, well, use your imagination.
To succeed, you'd need considerably more than positive thinking and positive encouragement. If only positive waves are what you need, then you will find plenty because everyone here is a winner. Some, like tuveyd, will 10 times their money by this time next year.
I thought the fact that you considered the possibility of giving up was because you might have glimpsed something. If not and you can afford it, then yes, it's worthwhile getting some genuine experience on it. It will save you all the wondering if you have never done it.