Ultimately, it all comes down to your risk tolerance, mine seems to be low while yours is certainly higher
To be fair for full disclosure I bought all my BTC from $20-$200 and have already cashed out a nice profit so it is easy for me to be relaxed. If the price goes to zero I will have only missed an opportunity to make more rather than having lost something I invested. I wish I could be this relaxed when I'm trading fiat markets, crypto does a weird thing to me where I'm able to disassociate it from money
It certainly doesn't work this way
For example, I didn't buy any bitcoins at all with my own money (I only reinvested here and there). All my bitcoins as well as other cryptos came to me through various jobs, but this doesn't change anything. I just can't see my profits go down even if I know it for certain that I'm long ago past the break-even point (read it is way below zero). I'd rather "suffer" paper profits unearned than real losses incurred. So, as I said in my previous post, it is all about your risk tolerance, and that seems to be sort of a built-in feature