If you want to be able to go big the first time investing in bitcoin is to have a real job and buy bitcoins. Then you can try trading and gambling where you can make your money bigger if you are lucky. There are other ways for beginners like me to earn such as make my rank higher and joining signature campaigns.

Bitcoin aside, are there any other forms of crypto currency? What has higher equivalent in USD?

When we say currency it is a money used by a country. Based on that definition I think bitcoin is just an asset fr now. It is true that it offers a great potential and big opportunity in making money but it is not yet widely used. Think of it as an investment for the future where I think bitcoin or any other crypto currency will then be used commonly.

I think that if bitcoin were to be a subject or a course, it should be taught at an early part of middle school. In my country there is no course that is directly related to bitcoin study, maybe because it is not a common knowledge to all. It would be great tho if there will be acourse about bitcoin. You are studying and will surely earn because of the potential impose by it in the future. 

Bitcoin today has a rapid increase compared to the past years the hype of the crypto currency is still increasing and I expect more for the coming years. I think in five years, it can reach the price of 10k USD.