Despite the 6 months price slump, you have got to look at the big picture. A 5 year review of BTC closing prices (in USD) on this day in the last 5 years:
July 25 2018: $8,200
July 25 2017: $2,754
July 25 2016: $661
July 25 2015: $288
July 25 2014: $601
July 25 2013: $94
Yes Bitcoin and crypto has huge volatility, but if you step out of that one day observation period, it is not difficult to see the tranjectory is upward, and has been for the past decade.
More important, it shall most likely continue to project up in the next decade.