A thing I invested in (by working less and cutting expenses) while in my 20s was to plow through a good swath of western (and other) literature, both fiction and non-fiction. Reading forces you to build and hold a construct of the author’s thinking inside your own head. It’s as close as you can get to living other lives and feeling how other people understand, experience and deal with the up-down-sideways of life.

How many books? Which ones? Many. All sorts. Try to get recommendations. Try not to reach conclusions too soon. It takes a critical mass, false starts, dead ends, unexpected journeys, trial and error.

Not a substitute for therapy, but definitely synergistic.