What really helped me was having a structured routine. Doesn’t have to be anything too taxing. Shower every morning, 3 healthy meals a day at the same time, getting outside for a walk, as you suggested, especially if you can walk in nature, doing some gentle exercise like yoga or swimming, 15 minutes of mindfulness meditation each day. Then telly at the end of the day to reward yourself..because you deserve it - when you’re in the depths of depression that simple routine can be impossible to stick to. If you’re able to do it that’s a sign you’re getting better and also putting a lot of effort in. But also if you have days where you can’t face getting out of your PJs and need to stay in bed watching tv all day, that’s ok too, don’t beat yourself up about it, you’re recovering from an illness just like any other.
The second thing that dramatically improved (I’d even go so far as to say massively contributed to curing) my depression was cutting off anyone in my life that brought negativity to my life or made me feel anxious or that I had complicated feelings about. For example I had one friend where I felt I was always making all the effort with the friendship, she never seemed to care about my life or gave a shit when I was very ill with depression but stayed friends with her cos we’d known each other forever, and we did have fun together most of the time. However all those times she’d hurt me, even in a minor way added up and contributed to me feeling shit about myself. Another friend would always take the ‘banter’ too far and I sometimes felt she was making fun of me, always brushed it off and told myself I was ridiculous for being over sensitive etc. But they all added up too, and contributed to a general feeling of not being good enough, which in turn contributed to my depression. I was always scared to cut people that I had a generally good relationship with off, in case I ended up lonely. Well one day I thought fuck it, I don’t need anyone in my life who doesn’t 100% respect me in the same way I do them and I’m going to put myself first from now on. So I cut them off and I wish I’d done it earlier. I have far fewer friends now but my life is so much more peaceful, simpler and not filled with complicated emotions, and the friends & family I do have never make me feel bad about myself. This was a bigger part of ‘downscaling’ my life, putting less pressure on myself, living a much quieter and simpler (and probably much more boring) life, but I realised that’s what I had to do to stop my depression being triggered. I’m the most content with life I’ve ever been now. I have a simple but enjoyable job, a few quality friends, I go camping and for walks with my kids rather than big days out with other mums, I go to the gym 3 times a week and when I have time to myself I read and watch tv rather than doing lots of socialising. It works for me. Sorry for the long post & I realise you might not relate to it but it’s just made such a huge difference I thought it might help, or help someone else who sees it