Much needed Vent

I’m sorry to dump this on anyone that reads this but I’m so dead exhausted. The house I live in is shared with my fiancés family who barely do anything to clean up after themselves, my fiancé included. I just had a baby 5 months ago and it feels like I’m the only one cleaning up after people. The dishes frequently sit for at least a week stacking up until I can’t stand walking around the corner of my kitchen and seeing it. Not to mention all the trash just scattered throughout the house. How hard is it to just simply throw away something when your done? Or to just rinse your dish off or maybe even just simply put it near the sink so there isn’t food mildewing away in the living room that my baby plays in. I don’t mean to sound like a terrible person and that I hate them or anything but I am so tired of it. Of taking care of this baby all day til my fiancé comes home for 4 hours max before bed. I can handle taking care of my adorable little man but I can’t handle doing that and watching this house repeatedly fall apart right after I clean it and it just keeps falling apart more and more with barely any effort from anyone else. I don’t know what to do anymore