"Your 20s can be an intense decade. In the words of Taylor Swift, those years are “happy, free, confused and lonely at the same time”. Many of us turn to literature to guide us through the highs and the lows of this formative era. We asked 20 of our academic experts to recommend the book that steered them through those ten years."
The article is in two parts – Part 2 is at https://theconversation.com/twenty-experts-on-the-book-that-got-them-through-their-20s-part-two-269322
Not sure if it actually "got me through" my 20s (which are now three decades ago), but the book I most remember reading back then is Robert M. Pirsig's "Zen and the Art of Motorcycle Maintenance".
For one thing, it spurred my interest in philosophy generally and the philosophy of science in particular (which I studied as a sort of 'minor' on a degree). Plus I could identify with Pirsig's mental health issues, if not specifically schizophrenia.
by Drwynyllo