Trade with the wise do not follow the emotions you can but you have to think well. If you can't control your emotions certainly trade you up could have been wound up. You can start investing with little capital and if this works you should add to your capital. So that your profit will continue to grow.
It is very easy to say that you should not trade with your emotions, but you need to have a very stoic personality to be able to let your feelings behind you especially when you're trading because trading is a very fast paced game in which you can lose almost all your money very fast or earn a fortune just as fast as well.