Was I out of line?

I live in an apartment with 3, now 4 girls. One of them, Charlotte, is an absolute hog and has her boyfriend essentially living with us. The fridge is stocked with their food, hardly any food from me and the 3rd girl doesn’t keep any food here to my knowledge as she mostly stays with her boyfriend.

Ive told Charlotte numerous times to make sure she cleans up after herself because she will leave food out for days and then go “oh silly me” or act like it’s not hers.

Neither of them, Charlotte and her BF, know how to cook, but constantly try and it ends with a mess. I have to, again, remind her to clean, which takes 2 days cause she doesn’t know how.

I recently started seeing someone and we both love to cook and want to together, however, there’s no room for ingredients. And with a new girl moving in, there’s no room for her.

I ended up texting Charlotte letting her know she should condense her stuff and organizer to make more room.

She keeps moldy food in the fridge and uncovered raw meet and when I tell her it’s Sanyo she just ignores me and then when I show her she’s like “oh that’s gross” ITS YOURS.

Anyway my mom says I should mind my business and stay quiet, but it’s a nightmare living with her. She’s extremely needy and the 4th girl is only here because it’s her last hope.

EDIT:

My lease ends in November so I’m moving out soon