Keep up that call center life! I have stuttered my whole life but have improved a lot with confidence. I worked at a call center for about 5 years, it was really rough at first! Plenty of rude people asking why they would hire someone with a stutter and plenty of other comments. I pushed through it and within a year and a half my stuttering improved significantly!! at 2 years I was promoted to a coach where I trained the new hires which I enjoyed a lot and boosted my confidence even more. It was a rough road but actually helped me in the long run. You got this!