I got into crypto in 2016 and I think invested in my first ico in that same year, and I remembered vividly that the first ever ico invested in was Kuwait coin, the developer of this project promised heaven and earth, he did not run the normal ico which I believe we all are most familiar with, but rather, he ran an IEO (initial exchange offering) which means, he got the coin listed on an exchange which have gone into obscurity now, from the exchange, we invested, and after the IEO was over, the coin started trading on the exchange but the developer was yet to distribute the coins we bought, and after about 2 to 3 days after the coin started trading on the exchange, the next news we the investors heard was that the developer had ran away with out money, and that it was a scam all along.
And since this was my very first project I am investing in crypto, the loss has a devastating effect on me and my mental strength, for several weeks, I could not think straight, for it was everything I had at that time I invest in that project, and this loss made me lose faith and interest in crypto and for like 3 to 4 months, I was away from crypto.
Later came back to continue the journey, but this was after I had completely healed from that first experience.
After that first experience, I still invested in some projects which paid off, others still either turned out to be scam, or the project died even before it began, in all of this though, that first project (Kuwait coin) was one that gave me the most bad impression on crypto at that time, it's something I can never forget.