...that maybe lists don't work afterall

I wasn't going to get up today. I didn't get up until after lunchtime. I had a list of things I was going to do, cleaning / sorting / bits of art / therapy homework etc. Nothing major, not solving any world dilemmas or crises, just things to get me through my day, and a Sunday - the most difficult of the week. 
Everyday I write a list of what I need to do. Usually I start a list at the beginning of the week and put in what is due to happen, eg, appointments, gym visits etc. Then I fill it in until it is full up for the week and add stuff as time goes on. Without a list I feel anchorless and alot more anxious. I need to feel I have achieved something, which I find very hard to do as am not at work and work was what I used to try and feel a sense of achievement. I need to have time filled up, no time for my head to take off in unwelcome and often unsafe directions. Even if I just tick off "clean kitchen floor" (and actually do it), it is something that I have done and that is a good thing.

Today, I haven't followed my list, have gone off list. My one local friend invited me to go for a walk with her and her partner. I went. I didn't stay in bed as had seemed inevitable after 1 hour's sleep and it being Sunday and all. It was cloudy and chilly, but it was lovely to be out. To get muddy and cold and a bit damp. To come home and have tea and cake. To have friends in my flat who talked to me, who listened to me and who are lovely to me. The only people who usually come to my flat are mh workers and occasionally my parents. Today I had friends here. For those few hours, I was free of my lists. I didn't worry about them. Although I now feel anxious that I haven't done what I promised (this usually provokes self harm as punishment), I am wondering if the lists are actually helping or hindering me. Can I free wheel through the endless days? Can I do what I feel like when I feel like it? Or will I end up not getting up some days and stupidly active on others trying to catch up. Would it be better or worse? I don't know. But it's made me think.