I feel so lonely even though I’m never alone

I’m 21 and live with my family in an HDB. Every day after class I come home, eat dinner with them, then sit in my room scrolling. My parents mean well but they keep asking when I’m going to “find a proper group of friends” and stop staying in so much.
Truth is I used to have a small circle in poly but after we all went different paths, the group chats just died. Now I walk around campus smiling at people and still end up eating lunch by myself most days. I don’t even know how to start conversations anymore without feeling awkward.
I just want someone to talk to about random things without it feeling forced. Is it weird that I feel this empty at home and outside at the same time?