Great brands are built on trust, quality, and consistency.
So given a Time Turner, I would tell my 21-year-old self that personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two. Life is difficult, and complicated, and beyond anyone’s total control, and the humility to know that will enable you to survive its vicissitudes.
Love is the ability and willingness to allow those that you care for to be what they choose for themselves without any insistence that they satisfy you.
If you want to go fast, go alone. If you want to go far, go together.