I will not invest bitcoin at the moment, it puzzles me. 2017, bitcoin prices will increase as bitcoin loans are the primary currency. In 2018 I saw a lot of bitcoin imbalances at times when it came to the point where I could not believe 
So? When do you like to invest in bitcoin? When the price will double its current price? If you really believe on bitcoins potential, then this is the best time to invest with it. Don't be afraid of what's going on right now, you should think on long term investment, not on what's happening of its price at this days.