In one year you can make 4BTC its very good I think. 
And how did you make them ? trading ? mining or doing something ?.
My advice for your coin just Hold that coin until the price hit 1k don't gambling your coin.
And how did you make them ? trading ? mining or doing something ?.
My advice for your coin just Hold that coin until the price hit 1k don't gambling your coin.
The chances to earn the same amount next year are less.
Because i think that the price of bitcoin will be increased.
And about the source OP has already mentioned that he earned those from mostly selling stuff or doing services and little bit from signature campaigns and not from mining.
Because if bitcoin price increase and the OP selling stuff for get bitcoin, the price of goods will rise because bitcoin prices went up so that the OP will get more bitcoin.
And in next year he btt account experienced a promotion that get paid more in the signature campaign.
In fact (at least how I see it) , selling stuff when Bitcoin price is low is better then selling while it's high . I will give you an example :
I want to sell something for 300$ now and the price of BTC is (150$ per BTC right now) , that makes it 2 BTC
Or I can sell it when the price of BTC is 300$ per BTC and only get 1 BTC .
So because we have to make USD conversion , It's better to sell while price is low if you are planning to keep bitcoin for long term like I'm planning to do so yes ... earnings this year may be lower then last year;
You could start a lending business with strict collateral rules as mentioned in the lending section.People follow the rules and the do pay you back so there is good chance for you to double your money.
I'm not planning to get interest from people , that's just not how I work honestly , thanks for the suggestion though .