Maintaining the same level of curiosity about your city that a tourist has is a challenge. You "just" live and work there, it's hard to get excited about your own city.
Some years ago I tried to be a tourist in my own city and basically treated my weekends like going on a city break as a tourist (helped that it was a city of several million inhabitants and some centuries of history, so it had some potential). I discovered some really wonderful places, sometimes right next to the streets I drove on every day for work. That made a difference for me in how I looked at the city and made my life there just a bit more content.
My gf and I started a project to spend a day in each borough of London, a couple of years ago. Originally we were aiming to complete it in one or two years, but life got in the way; it's paused at 16 out of 33 right now. I'm a born and bred Londoner in my mid-40s, and in the course of this (despite only being halfway through) have been to so many places I'd never visited - we research interesting cultural, historical, and alcohol-vending places to visit beforehand and it's ludicrous amounts of fun.
Some years ago I tried to be a tourist in my own city and basically treated my weekends like going on a city break as a tourist (helped that it was a city of several million inhabitants and some centuries of history, so it had some potential). I discovered some really wonderful places, sometimes right next to the streets I drove on every day for work. That made a difference for me in how I looked at the city and made my life there just a bit more content.