“It is not the lives we regret not living that are the real problem. It is the regret itself. It’s the regret that makes us shrivel and wither and feel like our own and other people’s worst enemy. We can’t tell if any of those other versions would have been better or worse. Those lives are happening, it is true, but you are happening as well, and that is the happening we have to focus on.”

Matt Haig, The Midnight Library (Page 277)