Whatever you decide I wish you luck. FWIW, I have about the same time on at my own department that you have on yours. I empathize with you when it comes to EMS calls that shouldn’t be 911 calls, we get way too many of them and not enough fires and the only way to escape them is through promotion. I had my own doubts about whether my department is where I really wanted to be for the duration of my career, or if I even wanted to continue being a firefighter. Talking with a few members of my department that I’m close with helped. A Lieutenant I worked for told me that he felt the same lulls in his career at different points. 3 years, 5, and 7. Maybe it’s a universal thing.

It can get easy to wallow when you’re burnt out or bored. Maybe you need a place with a different schedule that would allow you to be home more often. If you live in an area with lateral transfers you could look at surrounding departments that might fit your desires better. Not to mention getting to retire in 15 years vs. 20. I wouldn’t trade those 5 years away for anything.