Deciding what to eat 24 hours before

I completely understand why we should choose 24 hours what we will be eating. It’s in order for our human pre frontal cortex to be the one who controls what we eat and not the reptilien impulsive brain. I’m pretty good with controlling what I eat but can’t decide 24 hours ahead because I have so much to manage in life that I can’t take time to decide what to shop for and cook 24-hours ahead. It makes more sense for me to shop and cook fresh everyday and leave it to the last minute. I have a lot of basics at the house and it just makes my life easier rather then taking time to think ahead. Is this terribly wrong?