This is a tough business. I am afraid the reason it is tough has very little to do what every body says. Broker manipulation, for example, is a red herring. I am sure it happens but that shouldn't stop a good trader from profiting. However, there are too many pitfalls on your way that, on balance, it is something you have to make sure you want to get into.
It is a very painful journey, regardless what anybody may tell you. You stand to lose a lot: your money, relationships (unless you are very lucky), your sleep and peace of mind. For months after you start, it is going to be hell and, most of the time, you won't know why. You will do all the wrong things, you will work so hard and spend so much time and will have nothing to show for it. You will almost certainly run out of money. After all this, you may find that you have no talent for this business.
It is very important to understand what you are getting yourself into. You have got to make sure you got the stomach and the support mechanism for all that is going to happen to you. I believe good traders are born, not made. After all the struggle, you are highly likley to discover that you shouldn't be doing this.