I totally get this since I’ve definitely done it before. For anyone who might like to know a strategy that has worked for a fellow tommorrow-me assassin, if you want to do something tomorrow then actually figure out the time of day you’re going to do it, given how long it will take you to do it. The earlier in the day the better. Then keep that time in mind when you’re going to sleep so that you wake up with that plan in mind.

This might not work for everyone obviously but it has proven pretty reliable for me