I have been investing in penny stocks in the UK stock market for some years now, at beginning you fight with your psychologic feelings almost everyday but in time you learn to be patient, enjoy life and only invest in good projects.
Recently got into crypto but treating it the same way, I look at it once in a while but never stress when it's down, it's all part of intraday movements, up and down is how markets work.
Being happy is the main thing in life.
RE: happy life vs crypto investing? :)