Actually, the first requirement before investing or trading is an actual amount of money ranging to a specific minimum amount to a maximum one before knowing what the basics are, because you can't do a trade by just knowing how to do it and what are the things you need to know about it, in the end the money is the first thing you should have here. If you are a beginner use only the amount you can afford to lose for less disappointment if ever you failed or do it wrong. Your experienced doing it will become your teacher for future trade, but if you still unlucky and doing it unsuccessful you need to seek for learning and advice to those who excel in trading. It is not only about  buying and selling of goods and services but also on what you can contribute to your party and society. Do not stick on what is happening today, see also what might happen in the near future. If you are brave enough to take a risk always give your best shot everytime you trade. Your mentality will be your great weapon to your success.