Someone on here used the phrase to self-motivate to do something "just because I don't feel like I can do X right now, doesn't mean I'm not going to do it". I think that to myself a lot now when there is something like thi that I'm struggling to be able to do due to low mood. I hope that makes sense.
Also the knowledge that certain self-care things do make me feel a lot better once I've managed to do them. And focusing on what I have acheived each day, however small. There was a thread on here recently "a pat on the back" and sharing our little acheivements was really good. Now on bad days I keep a little note open on my phone and just list what I manage to do as they day goes on - eg, I woke up, I listened to the radio, I got up and fed the cat, I drank some water, I took my pills, I had a shower, I watched the news channel for a bit, I ate some toast, I got dressed. So rather than think "I've done nothing today and didn't even get dressed till the afternoon" I can see the things that I have actually acheived.
As I'm going along on days like that I try to only ever think one thing ahead- so I'll be lying in bed and think, right, after this radio program finishes, I'll get up to go to the loo. Then when I get up I think, once I've finished this I'll feed the cat. Whilst feeding the cat I think, I should drink some water. Etc, just thinking the next step ahead and trying not to 'get stuck' which happens a lot (happening now, been on the sofa all afternoon since a major stress this afternoon).
Hope that makes sense and helps. Time tabling things in to the day or having a very short to-do list helps me too. Are you having/waiting for any therapy? CBT techniques have helped me enormously with this kind of thing, although I didn't realise it initially at the time I was having the therapy. Mindfulness and focusing on self-care as well.
step at a time, OP