First, as evidence, I present to you all, the worst trade I've made in crypto so far (initially bought for a total of $200 USD, or $14.71/ETH):
Heck, looking at it now, it's almost exactly the five year anniversary of this shit trade. No matter how big my earnings are on my current portfolio, I often think back to this exact trade and ponder… even if I hadn't sold then, what might've happened? Would I have had the wherewithal to hold to today and beyond? Would I have had the foresight to stack my bags higher at that rock bottom price?
I think the answer to both of these questions is: absolutely not. This isn't a "Oh man, if I didn't sell then, I'd have made $24k instead of losing nearly $100 by selling today!" situation at all, it's not either-or. Hell, I even went into that exact buy thinking I was just going to hold indefinitely, because I'd already missed the boat on Bitcoin – which, for the record, was trading at around $450/BTC at the time.
But watching the market fluctuations, see the constant FUD of ETH as a technology, trying to determine whether my investment was even safe sitting on Kraken or my HDD or what have you… It was too much. This was the worst trade I've ever made, but I don't blame myself for making it. Hopefully also a reminder to those beating themselves up for selling early – don't blame yourself for wanting to avoid risk and mitigate losses. No one has the benefit of foresight in these decisions, so all you can do is the best you know at the time.