As indicated by predictions bitcoin should have achieved 15k$ by end of 2017 and fall in first week of jan 2018
In any case, shockingly its effectively reached 17k$ in 2017.
Should I purchase or hold my btc?I don't plan to sell at any point in the near future.
The price of bitcoin is not stable, it will crash at any time, and it is risky to hold bitcoin. What you need to do is to control the amount of money you invest in, and when bitcoin crashes, you can be immune to it, so you can be patient and ultimately make a profit.