Not really necessary for you to suffer first but most of the time this had been the situation on where people do really end up.They would really be minding when they had been slapped out by the reality when it comes to crypto investment.
Its actually hard to determine on where could price will go even its on top ranks then presuming out on where its peak price would be always in question and this is where risk management factors does really matter on each trader or investor.
If you do really believe on ETH potential then its up to your choice but of course you should mind off the risk.
Fair enough,,, you do not need to suffer to learn, but I find that it is the only lesson that sticks, just like in real life;) If you do not scrape your knee falling you cannot learn to be more careful no matter what people say about it!
But I do believe we have all sort of learnt our lessons with ETH. ICO hype made it go boom,,, and ICO failure made it go bust. I believe it will be defi's turn, we just have to catch it.