I need advice

I need advice Hi guys I started a new job which is pretty good so far besides having to make phone calls. I stutter bad when I’m nervous and I also block on certain words. I have avoided making phone calls until now. I’m miserable and cry everyday after work because I spend my days in fear at work wondering if/when my next phone call will be. I don’t wanna quit bc I’m proud of this job and quitting will do nothing for me. My question is, anyone here who stutters who works with phones have any advice? Or any advice on how to learn how to really not give a fuck anymore?