Are you willing to the risk of letting your 0.1BTC go? If yes then you are already on your way to begin somewhat serious trading. Though, 0.1BTC might be expensive in some countries but you can easily earn that same amount or greater if you invest it on a promising altcoin such as Golem, Waves, Qtum and Stratis which can double or triple your investment within a few months. Yes, it is possible to earn a good income with 0.1BTC but again don't expect that much.