Helppppp need advise ASAP please help a girl out

Okay so,

Sorry this is off topic but...

I think I may have got a job. The manager is wanting to call me so I can have my trial day soon. However, I get so anxious meeting new people and I’m just so anxious in general to do new things or experience new situations. But I do need the money so I sorta do need the job. Please help me? What advice could you give to someone like me?