I feel like a bad mom

Hey mamas, i am struggling pretty hard with my Postpartum Depression. Im on medication and in therapy already. Here is the thing. I just dont feel like a good enough mother. I love my son so much but i feel like i am a lazy parent. If im not engaging with my son all the time i feel terrible. I feel like im not doing enough for him ever. We hardly go outside, we do the same things and play with the same toys every day. I catch myself on my phone way too often and I sometimes forget to talk to him enough. Hes only 6 months. Its so hard to be 100% present when im so tired and spaced out all the time. I count down the hours until my husband gets home and on the weekends i tend to be checked out a lot. How do you ladies do it? I feel like a terrible mom and that maybe i wasnt as cut out for this roll than i originally thought i would be.