”Jack of all Trades”

My heart palpitates as the excitement arises within me when I hear someone miss use “Jack of all trades, master of none”. As if we are here on this planet for upto and possibly exceeding 100 years, yet we are to concentrate on one thing that entire time. How boring. If thats what you like, please do you, yet upon learning the full proverb, “A jack of all trades is a master of none, but oftentimes better than a master of one”, I finally feel my fit on this world. To each their own.