I am just so depressed and my dog is suffering

I am supper depressed. I don’t want to do anything. I don’t want to be on my phone I don’t want to watch tv I don’t want to read or go out I just want to sleep. I have an 18 month old supper high energy dog and he is supper sad because he wants to play and I just don’t have it in me. We usually play, run and go on walks. I took him for a walk today and it took everything out of me. After yesterday I told myself I would make it up to him today and I haven’t been able to. He is whining around the house, bringing me toys and just sighing and laying down and crying. I feel so horrible I want to cry. I just don’t know what to do. I have a horrible Thearpist who does nothing but validate my feelings. She doesn’t give me any tips or tricks to cope or feel better. Trying to find a new one and everyone is booked so it’s taking time. I just feel so bad for my boy. Idk what to do. 🥺😔