I see even when people can rationalize it correctly, that is see the long term gains from doing it, tend to still be enslaved to their present feelings if those feelings are strong enough. This is the struggle of depression.
I find for situations like that, the blastoff technique works well. When you find you need to do something, instead of thinking about it, start counting backwards from 5, like you're a rocket getting ready to blastoff. It takes 4-5 seconds for the other part of the mind to come in and override the action, so as long as you jump out of bed before that timer hits zero, it's easy. This way you can do whatever it is you need to get done regardless how you feel. You can always think about how to do it once you've gotten started. It sounds silly but it works very well and is super easy to do. A zen teacher once told me, "Don't think. Do." to mean basically the same thing.
I find for situations like that, the blastoff technique works well. When you find you need to do something, instead of thinking about it, start counting backwards from 5, like you're a rocket getting ready to blastoff. It takes 4-5 seconds for the other part of the mind to come in and override the action, so as long as you jump out of bed before that timer hits zero, it's easy. This way you can do whatever it is you need to get done regardless how you feel. You can always think about how to do it once you've gotten started. It sounds silly but it works very well and is super easy to do. A zen teacher once told me, "Don't think. Do." to mean basically the same thing.