I've been at this for 37 years and I still lose money trading (not a lot, but it happens more than I like). If you're going to trade, please take to heart all of the advice the ET posters have given you, the primary one being to paper trade until you feel comfortable - and that could be years away, or never.
In trading I have found only 2 true Holy Grails (profit while principal is secured) after spending decades searching them out. The best one, and I can say what it is because it's not really a secret, is true arbitrage where you are simultaneously buying and selling, but that takes a lot of capital, a lot of equipment, and you need to be properly colocated on the Internet. The other one works very well for me, but its probably going with me to the grave (no one has ever been willing to pay me what I want for it - lol).
So, unless you're lucky enough, or smart enough, to find one of these on your own, chances are you will lose money trading.
Here's my advice for you as a newbie to the market. Do something simple and conservative first, like writing covered calls on a blue chip like GE. You'll make 3 or 4% per month while protecting your principal a little.
If you can figure out how options work (and I note that there's tons of information on the Internet about Covered Call Writing), then you're probably intelligent enough to take on the market if you study it thoroughly and practice. If not, think CDs.
Good luck.