Trouble after the "introduction" phase

I feel like my SA has progressed to a point where I can mostly get through a conversation without panicking, but it all feels very surface level. I have no idea how to be myself around people, and it comes off as me being very boring and stale. Once I've run through the typical "getting to know you" gamut (what are you majoring in, do you have any pets, what kind of music do you like, etc) I run out of things to say. Plus, the whole time I just feel really...fake? I don't know. I feel like a constant acquaintance, never a friend. And it sucks, because I feel so lonely.