Although it is possible, but it is a very difficult road. Need great luck, and great ability. Well, even with $ 1000 you can do it, with bitcoin, you can achieve whatever target you want, but it takes a very hard effort.
Yes I agree that having a goal to earn a million dollar is quite a hard thing to achieve and to do. But it is possible as long as you will take time on giving effort in a form of you tradings. Just like how you will manage to invest a lot of money you should also invest time and management for you to have that big earning. Take time to plan on both long term and short term trading where you follow the basic of trading such buy when it's low and sell when it's high for you to earn more.