The cartoons are funny I will grant you but only one section of one chapter in this entire book had be laughing out loud (and it wasn't even one vaguely relevant to my situation). A good deal of this is repetitive and self loathing rolls off it in large gin-scented waves. There is an inherent belief with this author that everyone spent their 20s knee deep in alcohol bottles and spliffs and that they're lamenting the loss of that "wild youth". It's a little insulting to people that "turn into their mum" (i.e. become responsible human beings) early and didn't have nor ever wanted a substance abuse problem in their 20s. The writer tries very hard to be witty, she occasionally succeeds.
You might enjoy it, but it isn't universal for everyone's life.