If you spent up to a year in the crypto currency community before you were able to make 10 ethereum , then i see that there is no shorter way for you to make more ethereum than to spend additional 5 years to be able to make up to 50 ethereum.
Well, why? You can invest in several ICO and get a double or triple profit. You can do daily trading, but this is more difficult, especially now. Increase your deposit to 20-30 ETH is quite real. Well, there's little left up to 50