Don Miquel Ruiz is most well known for the book he wrote, “The Four Agreements”. I cannot remember if this quote was from this book or not but I have found him to be a great spiritual advisor.
If you are able to not take things personally you wouldn’t believe how much weight gets lifted off of your shoulders. Besides the thing that was said to you that you took personally may have not even been about you at all.
Instead of getting overwhelmed trying to not take everything personally take baby steps doing a little at a time until you grow strong enough where almost nothing bothers you at all.