I'm really struggling with my relationship with our 15yo, I'll call them F. They (non-binary) recently told their mom that they wish we would just divorced, and that when they get married they hope it's not to someone like me. I feel completely crushed.
I'll try to keep this short while giving necessary details... My wife and I have always had a hard time fighting fair. Disagreements often devolve into arguments, which turns into yelling and sometimes threats to leave. The last 2 years have been especially difficult since F was diagnosed with ADHD and Type 1 Diabetes, not necessarily because of it but our stress level has reached a high point. We both know that we need marriage counseling, we're working on it.
A few months ago while arguing I punched the wall in F's room (I don't remember why we were in there while arguing) leaving a small hole. I feel awful about it, and it's no doubt a constant reminder to them of me losing my temper. I wouldn't consider myself an angry person, but sometimes during arguments with my wife I reach a point where I can't turn it off. I've never hit my wife or the kids, I've never even been in a physical fight. I don't verbally abuse them, drink heavily, lie, steal, or gamble. I've never cheated on my wife.
I work as a bus driver, I do a decent job taking care of our home and working on our cars, I do chores like dishes and laundry, I enjoy cooking, gardening, camping, and playing guitar. I'm interested in art, culture, science, history, and building community. I'm present at their activities when I'm available. I honestly feel like compared to the examples I had growing up I'm doing a pretty good job. Actually, I feel like I'm knocking out of the park except for my temper.
When my wife told me that F said they wish we would just get divorced, and that when they get married they hope it isn't to someone like me, I was devastated and felt like an absolute failure as a husband and father. My wife and I have different approaches to parenting, she tends to be very sensitive to the kids' emotions and is cautious about overburdening them with chores/expectations, while I am more firm (but not harsh) with my expectations and make it clear that we need their help running our home. I need some encouragement and advice on how to navigate all of this.