I am sure that it is possible to make forex as a full-time job and most probably many do so. However, in my opinion, it is way too hard. You need to have a substantial capital, a lot of knowledge and an ability to control your emotions!
Before you start trading on real account, you have to thoroughly learn how it all works, then test yourself on demo-trading and only after that you can feel secure secure enough to enter live-trading.
I love scalping, however I prefer trading on higher timeframes. There is much less market noise on H1 and H4 and above, thus less false signals and more profitable trades.