Nobody knows and guarantees that 2018 is better than 2017, as we know that there is currently so much negative news about bitcoin that it makes a lot of users trust the false news and choose cut lose.
Before start 2018 people were expecting that 2018 will be more better year for the price of bitcoin than 2018, but i think that still it did not show any such trend, but now people are expecting that bitcoin price will start increasing its price after the middle of 2018 and this time it will surely hit 30000$, but still we cannot say anything for sure.