This question concerns all of us but no one will give you the right answer. Personally my opinion-growth still not soon. I think in 2019 we will be in flat. IMHO
You seems to be quite pessimist. 2018 is still remaining and all the actions last year also was done in Nov- Dec. So its not yet over and may be this remaining days in 2018 would be the best ones also for cryptos and for many investors as well. So keep buying and investing in it.