Very good advice.
In fact, I think that everybody should understand that crypto market is the same as any other market, stock market, Forex etc.
It's very risky so please be careful before investing.
The best strategy, in my opinion, is to invest only money youcan afford to loose and to diversify your investment.
It is not necessary for us to invest all of our money to cryptocurrency of bitcoin. It is better to take time to learn and to know how we could earn more and somehow gain profit with the used of cryptocurrency on transactions, investment or even in trading where we could invest some of our money and came out to start as our capital for us to earn more and used the opportunity bitcoin gave us today as user.