I am still confused, whereas my friend's suggestion he said better buy some btc

I will go with your friends suggestion. Better buy some BTC because there is a huge possiblity that bitcoin price skyrocket after August 1. There maybe lots of FUD spreading around but the update itself signals bullish bitcoin due to the fact that it is one to help solve the scaling problem of Bitcoin.
Bitcoin is not going to skyrocket you live in a dream. See the charts over the years were going back to high lows. You better sell and buy back a lot more in the future