I've just started trading cryptocurrency. I began in 2011, when Bitcoin was trading for around $1.
I first learned about Bitcoin from Wired magazine, and I was immediately drawn to its promise of a modern financial system. However, I wasn't really sure what it was or how it operated.
As a result, I went to my neighborhood library, where I borrowed a book of Andreas Antonopoulos' Mastering Bitcoin: Unlocking Digital Cryptocurrencies (public library link), and I purchased some Bitcoin when it first reached $10 (still a reasonable price).
That book taught me a lot, and also piqued my curiosity in the larger topic of digital currencies. I acquired additional coins that were worth more than $10 apiece as soon as there was adequate liquidity on exchanges and websites like MtGox. I spent the most of 2011–2012 studying technical indicators and price action trading strategies to learn how to trade them successfully.
I also became engaged with various other cryptocurrency-related initiatives, such as Hackers For Charity.