Agreed. I strongly recommend not price-watching, particularly on bad days, but also on good days.
If you don't train your brain to "believe" you're making money when the price goes up, it's a lot easier for it to accept that you aren't losing money when the price goes down.
Nothing is gained or lost until you book a sale or close your short/order. It's still relatively rare for cryptos to just fail. If you don't like the price you are getting, set a limit sell order at a price you do and ignore the heck out of that market.
That summarizes my current relationship with Siacoin, for example.