Add these 3 items to your chart and they will help you examine the price of bitcoin.
Recommend using BNC:BLX on https://www.tradingview.com for long term data of bitcoin price.
Trend lines
Support and Resistance - SaR
Resistance
Golds previous all time high at around $1920.
Bitcoin recent high at around $1866.
Support
Bitcoin past highs and round numbers.
Fibonacci levels
Using the most data available from the top to bottom of 2014 high to the low of 2015.