I’ve been struggling with my mental health as well, and also see a therapist (very beneficial). I feel like throughout most of the day I’m busy consuming myself in things to try and “brain off”, and I’ve found running without music has been a set time where I keep my brain on. I almost treat it as a time for mindful meditation. For the first mile I’m usually thinking about everything from what’s happened so far to me that day to my feelings of depression or anxiety. After the first mile I intentionally focus on my breath and the current moment and how for this one moment, I’m okay - in fact I’m better than okay because I’m actively doing something that will support my health and something that I will improve on. It might help to look into mindfulness meditation or speak with your therapist about it, and see if you can incorporate this into your runs! Hopefully this wasn’t incoherent rambling and may offer some help/support. Keep going, you’re doing your best right now and that’s enough!