Looking for something for someone who feels like they are behind in life/confused about their path.

Hi everyone! I have a friend who is 39 and struggling a lot lately. We had a conversation where he told me he was feeling unhappy with where he is in his life and feels like he’s too old now and is “behind” when it comes to things like not being married/ his career/ etc. He’s actually a very successful artist and this made me sad to hear. I am trying to find a book I could gift him that would maybe make him see that none of us really know what we’re doing in this life and it’s okay to not follow the same path as other people.

Any suggestions would be greatly appreciated!

by mustardyellow123