Victoria Schwab said this quote

People were messy. They were defined not only by what they'd done, but by what they would have done, under different circumstances, molded as much by their regrets as their actions, choices they stood by and those they wished they could undo. Of course, there was no going back - time only moved forward - but people could change. For worse.And for better.It wasn't easy. The world was complicated. Life was hard. And so often, living hurt. So make it worth the pain.