What do I do if I feel insecure at my job and fear for my job security because I have no personality?

Its a sales job with a small team. My boss can talk an ear off. I'm a nice person and good listener but i have social anxiety and around some people it gets worse. Its funny cuz during the interview i felt the exact opposite. I think i natrally have a distinct internal fear for my bosses. So like once he became my actual boss maybe my internal brain like shut down and is extremely fearful of him and messin up in front of him like saying the wrong thing. Ironically this just makes me seem awkward as hell and harder to get along with cause im so quiet and awkward with him mostly. I feel so insecure like im a disappointment to him now. I can't crack witty jokes. Im the girl who giggles at EVERYTHING. But im not some COOL PERSON like my boss whom everything he says is like some super charming witty sarcasticly cool comment. Not in a mean way by the way he's just like one of those george clooney types LoL

What do I do if I feel insecure at my job and fear for my job security because I have no personality?
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