TW: Mentions of needles, injection and Covid-19

I have my COVID booster vaccine tomorrow. The past 2 vaccination I've had my mum has come with me and been there during my freak outs and I managed it (with her physically restraining me...).

She told me she wasnt able to come with me tomorrow because shes babysitting and there is literally no one else who can take my little cousin tomorrow. I've asked all the people I trust and they all have work/other commitments. The only person who is free is my gran, who I havent even asked as she is very one sided and believes my fear is "overdramatic" and would actively make me worse if I brought her along. 

All the resources I've found online are just "dont look at the needle!", but just knowing there is one actively coming towards me triggers my flight or fight so bad I wont let anyone even touch me without lashing out at them, making me a danger to the nurse and myself.

I dont know what to do and I'm having a major panic rn and cant calm myself down. Just trying to breath rn. 

Virtual hugs are needed (and any advice you have would be good too).