The Comfort Crisis: Embrace Discomfort To Reclaim Your Wild, Happy, Healthy Self by Michael Easter. Never Finished: Unshackle Your Mind and Win the War Within by David Goggins. These two books stuck with me. We are often too comfortable with being comfortable. There is nothing wrong with that, but real growth happens when we step outside our comfort zone. We are far more capable than we think.
Also recommended in this reply