Catchy title ;)
You’re spot on with your point about telling yourself; “I’ll do x someday.” We all say that about almost every aspect of our lives. We say it about travel. We say it about our health. We say it about our dreams. But, it’s a little lie we tell ourselves to feel better about the miserable “now” and put off the seemingly insurmountable challenge of making those dreams happen. There is no “someday”. Life is too short for that type of thinking. As you say, life is too short to spend 8–12 hrs every day doing something you don’t like with people you don’t like to accomplish things that don’t matter.