I'm cooking for one and have a hard time portioning!
Most recipes can easily be multiplied or divided for different portions with simple math so don't immediately write off a 4 serving meal. I also love to use plain frozen beef/turkey/chicken patties as single-serve options that are easy to thaw and use in recipes to avoid wasting excess ground meats.
I don't like repeating meals!!
Try disguising leftovers in new meals so it's not a copy-paste repeat of yesterday's food. If you cook steak for dinner, add the leftover into a salad for lunch the following day. Instead of tacos for a few nights in a row, use the meat in egg bites or quesadillas.
I don't have time to cook throughout the day!
I firmly believe that crockpot is in need of a major meal prepping rebrand. Set that baby on low all day Sunday while you clean or nap and you can have a versatile protein prepped for the first half of your week with little to no work. I also love rotisserie chickens and sheet pan recipes for busy days.