I have to give away my dog and feel awful

This is my almost 2yr old mixed lady Ida. I love her with all my heart. I got her last may as a rescue. She was really anxious in the beginning but did wonderful within a short time and is now full of life and happy to the fullest. Now comes the sad part.. my mental health declined drastically after the death of my stepmom in summer of last year. After being sober for years I started drinking again. Never got to drunk to take care of her and went in and out of rehab. I‘m got admitted to a mental hospital last friday. My therapist, family and myself see that I can’t live on myself for now. I have BPD, Depression and an addiction. Ida is with my mom atm. We decided that I have to live in a grouphome or have to go to therapy for many months to get everything figured out. That would mean I can’t take care of her and my mom simply doesn’t have the time to look after her for that long. It breaks my heart but its gonna be best for her to find a new home. She’s gonna stay with my mom until we have found a new owner with the shelter. We are gonna make sure the new owner is good for her. I feel so incredibly guilty. While knowing I did my best and she had a really good time with me, she has to settle for a new home, new humans and I‘m sure its not gonna be easy for her. I honestly just needed to write all that down and tell someone… I hope it fits this subs rules.