idk what to do

i'm 26 and i have a partner we've been together for 7 years. they're the best partner i've ever had literally. i couldn't ask for better. however, i find myself wanting different. i miss being able to not worry about someone else's feelings or emotions. i know that sounds really shitty. they're a good a partner, but i find myself having to ask them to clean up their mess or to be more aware of things. i cook, clean and do laundry and take care of our animals. and they help out sometimes or after we talk they promise to do better and it doesn't last. i don't want to raise my partner or spend my whole life begging for them to be an adult. and sex just doesn't feel like us. i find myself doing more than receiving and when i communicate my feelings it's always my fault. i just would like some advice or help!