Wife pushing me to work more

I have a good job Alhumdulillah with a lot of flexibility and usually 1-2 days additional off per week. My wife keeps telling me and pushing me that I should pick up another job or way to earn money.

My usual job can get very tedious on the days I work but I make enough to easily pay off our basic expenses and have savings. In my days off, I usually play sports or engage in my usual activities but my wife keeps saying I should find another way to make money. Alhumdulilah we are in a good and stable financial. She works the usual Monday to Friday 9-5pm office job.

I feel like working any extra days for me will be detrimental to my mental health and need those days off to relax since my work days can be 14+ hours sometime.

Has anyone been in a similar situation or can provide advice to me on how to approach it with her? I’ve already told me many times I like those days off and it’s important for me.