The 2018 will be different year not the same as 2017. Bitcoin will show stable growth and some other major cryptocurrencies will continue its rise. Invest in them and you will get your profits surely.
although still the bitcoin price is trading in a low price, but still people are expecting that this year will be more better that 2017 for bitcoin, in last months of 2018 it is expected that bitcoin price will jumps and will hopefully reach to 25000$, therefore we can expect that this year will be more better in favour of bitcoin.