How do you get over being shy and socially awkward?

I need a job but I am very shy and my voice isnt very loud so I dont think anyone would hire me. How would one overcome their fear and anxiety of talking to real people so I can land a job? Also I get really scared when I order from fast food places or like anywhere that requires me to speak to someone. I always stutter and forget what I am about to order and the person always ends up saying "Im sorry, I didnt catch that." Then I have to lean in and try to speak 'louder'. Another thing is that I cant talk on the phone and the sound of a phone ringing is terrible. I only have like 6 close friends and I consider everyone else strangers and acquaintances. What do I do tho? Rip