my kitten disappeared in my apartment

i got my first pet a couple days ago, a baby kitten. i've been pretty scared n worried about her since i dont like leaving her alone in my apartment, shes too tiny and 2 months old, i looked everywhere every little spot even INSIDE my couch (she has hidden in there before) i even went to my buildings lobby to check if she fell ... but i really cannot find her since 19:40pm. i was with her at 18pm she was playing w the curtains then went under the couch as usual, i checked if she was there when i missed her almost 4 times and she wasn't. im scared, i have cried a few times already :( (i looked EVERYWHERE)

UPDATE: i found her!!! thank u everyone for all the support <3 i looked everywhere, even inside the oven but turns out she was just inside the couch i wanted to check there one last time before giving up, i js sat there almost crying then i heard her purring never been more relieved in my life 🥹❤️‍🩹