My plan hold it and waiting for it's price to go skyrocket again and get a huge profit from it. In that way I might be an instant millionaire if I saved enough amount of BTC
Yes absolutely right. But you need to earn also some bitcoin in a cheap price now a day. Because you have an opportunity to get more bitcoins on 1 Aug and now a days. So go for buying bitcoins too. It can make you millionaire easily. So saving is also the best key to become a millionaire and getting bitcoin in cheap price is also best way to become a millionaire.