I'm a newbie and have been into crypto for a couple of months now. I must say the advice from other members about not checking trades too often is very good. One can become obsessed with it, and I think the thrill of the "win" can be quite addictive. Similarly that depressed feeling when the world is "red" can be deflating as well. There must be a "happy" medium, if one is to maintain a balanced life.
That is true only if you are an ordinary hodler. But if you are a trader you don't worry if whether the market is going up or down, you are making money on every and each move of the crypto. That's the beauty of trading. But on the other side there are not so many successful traders who can accurately predict the moves of the market. Personally I try to diversify between trading and hodling))