If you have nothing to do, you can trade a little. You better do it on a demo account. Unless you want to lose your money.
This isnt the solution. How long can you do trading on demo account just for the reason that you dont want to lose money? Is it right? No, brother you dont have to do this. Rather do learn the techniques and practice them on demo account but as soon as you become satisfactory with your performance, just come in the main stream. Dont get feared with loss, it is a temporary lesson for your better future.