Made mistake of my life

I bought an expensive house because I thought we needed more room. I let go of my old flawed home with a low interest rate and now I find my new home has a lot of flaws of its own and I don’t even care about the space. In fact, the space somehow works LESS well. What makes it feel even worse is that I was very close to pulling out but went ahead because my husband didn’t want to pull out. Now I regret it all and he is regretting it all too. It’s hard to move on from this. I am poorer now and my life is worse. It’s very unsettling.