The market is highly volatile and we cannot predict what is to come in the crypto market. The Bitcoin market always shows a huge leap in the crypto market every year in the beginning of 2017 the bitcoins started of with $ 1000 and now the value has surpassed $ 16619 which is a positive sign and it proves that it is a good investment and it will increase your investment by more than 20 thousand times than the current value of bitcoins. I would not suggest to put all your money in a single basket as it is too risky you can consider putting half of your earnings to the bitcoins, still you will get good returns on your investment.
Every serious investor knows that past performance doesn't tell anything about future performance. There's no sense in saying BTC will go up x20 next year just because it performed so well this year. On the contrary it may be overpriced at current price because of the CME futures market that's coming on 18 December. When people see futures market won't how such an impact on the price as they expected BTC price might even crash. Nothing guarantees you that holding BTC in next year will make profit. After such gains this year in theory there's even more chance for the price to crash, than to make x20. The more the price rises the more risky it is to hold. So putting half of earnings just in one investment? I'd rather not.