I failed. Drove out both stepsons, leading to resentment from my wife. Daughter disrespects us both at 11, only going to get worse.
Is it best I cut my losses and move out?
It is only through recognising our shortcomings can we improve. Stick around and make a differnece to that 11 year old. Your wife will go from sole mate to flat mate and back again half a dozen times between now and when one of you falls off the perch. Try to remember what made you fall in love with her the first time around.