Can I learn it fast?

Can you eat a pill in the evening and wake up the next morning speaking fluent Chinese? The answer is NO, there is no magic and if you want to speak, read and write in your daily life like a native Chinese, it will obviously take some years!

That being said, some people find Chinese to be easy, while some other people find it to be difficult. However there are many foreigners in China who can speak standard mandarin Chinese without any previous knowledge after only 1-2 months staying in China. It really depends on which parts of the language you want to learn.