Here's the thing. I can correct this, but it won't change the facts. It will just make me ignore the reality, and get more into hanging out with people and distract from the very things Ecclesiastes and Seneca write about.

It sounds like you’ve already made up your mind. I haven’t read the suggested book, not Ecclesiastes not Seneca, but I can tell you that there is a way to find peace and happiness without ignoring reality / distraction from a nihilistic truth.

You can be on the boat, day after day, and enjoy the feeling of wind in your hair, feel childlike irritation and curiosity at the sunburn forming, jump in the cool water before climbing back in, all without losing sight of the inevitable.