My biggest crypto regret is not having bought Ethereum when it came into inception back in 2015. I had the chance to do so when I first started with crypto back in 2014. ETH was worth cents, and now it's worth hundreds of dollars (USD). I also regret not getting into Bitcoin earlier when prices were dirt cheap. By 2009, I was already in high school and well-fond of computers and technology. Used to hear about Bitcoin by then, but I've thought it wasn't going to be a success. Guess that I was all wrong, as now Bitcoin is the biggest cryptocurrency in the world worth thousands of dollars (USD) on the market. If I had mined Bitcoin with my laptop's CPU back then, I would've been a millionaire today.

At least, you get to learn from your mistakes. Now I'm always on the look for new & promising projects to invest into. If they have a good vision and development team, I try to invest into them early before they become well-known in the crypto/Blockchain space. That way, I can buy low and sell high for profit. Every time new cryptocurrencies emerge with innovative features here and there. But only those that remain persistent in development and innovation will survive in the long run.