Can someone point me to where I should begin?
And one more question: What is the minimum amount of money needed to start?
There are a lot of trading lessons for a newbies, it will teach you the basics about trading. As what others have been recommended watching videos may help. Take it slowly, gather the information on how you will start your journey in trading. Learning knowledge is very important to avoid big loss of money and also do not invest without knowing anything. And start any amount that you can afford to lose since the market is volatile.