There's got to be more to life?

33(M) and everything just feels so mundane.

We've had some sunny days recently in the UK and even that hasn't shaken my mood. I wake up early and try and be as productive as possible. I remember my 20s fondly, I couldn't wait to finish my degree so I could move back to London (where I grew up) and live the city life.

Now everything just seems like accumulating as much money as possible and slowly waiting for the inevitable death. I read, work out, go on long walks, travel several times a year but everything just seems so "meh" been there done that.

I think I've personally achieved a lot in the past 3 years. Life can seem meaningless without a mission. What does the dog do once it's caught up to the car?

Edit 1: Thank you to all the replies. I wasn't expecting so much support and positive comments. I guess posting on the right sub is very important lol.