I’ve sunk back to where I started

Hi coaches,

One fight with my partner and I feel like 5 months of scholars has gone down the toilet. I don’t know how to pick myself back up. I realized I am doing well when I am not around other people. I am questioning if I shouldn’t be in a relationship for all the damage I do to my partner and myself when I am trying to please them. The arguments always come about do to my parenting skills and how I parent my own child. According to my partner I always let her get away with things and now she is an entitled brat. It strains my relationship with my child and my partner. I feel torn between the two all the time. I find myself always trying to please both. I am so tired of this dance. I want to run away from my life. I have done model after model and nothing changes. I feel like a failure. I don’t know how to pick myself up again. Where do I start?