Another thing is I have a workout plan and I would like to stick to it as much as I can. Still one time I couldn't do the plan but I still did a little exercise do be able to make the checkbox.
Other than that, I just do NOT want the feeling again. You know the feeling of "bah you couldn't do it!" Because I want to ride this for as long as I can at least until I'm at a good enough place.
Sometimes what helps is to change the thing. If you're plan was to do THIS exercise everyday and for whatever reason you can't on a certain day, do something else that you can, so you still are keeping the habit going.
The last thing is, I don't dread having to do it. I like doing it. That might not be enough on its own to get me to do it but it definitely is a huge help. Trying to get up to do something you like is much easier than trying to get up to do the thing you're forcing yourself to.