I cried while writing this please help me!

Hi can someone help me.. I’ve always had really bad anxiety and so I put off getting a job after school to get a rest from all the stress and I’ve lived with my boyfriend. today I’m getting my first job and I’m going to meet my boss and I’m just stressing like crazy and I’ve had the worst headache the anxiety is eating me alive because I’m not good at talking to people. I started crying because it got so bad and it hasn’t been like this in months, I’m freaking out because I hate being in this place and I don’t know how to calm myself down. Please anything to help me I don’t know who to even go to right now.