Dealing with parents with a stutter

Dealing with parents with a stutter I am 19 tomorrow , sadly my stutter is getting worser ever since I have gotten a job in retail . However I don’t really care much about and I am used to it . The problem is my father , whenever I stutter infront of him he starts telling me to fix it and giving me a full speech . He says that you don’t care and you’re too lazy to fix it . Even when we go somewhere in public which I avoid going with him as much as possible to avoid embarrassment . He starts kissing his teeth and often sighs expressing he’s fed up with it . It wasn’t as severe when I was a kid because I didn’t live with him for over 8 years but ever since I started living with him it became worse slowly because of his attitude and anger , he gets fed up and I know that he cares about me but I still find it quite rude . Sometimes it just hurts me that my own father is not patient or comforting. I don’t understand why he just can’t be patient and help me with it . Like instead of ordering something in public why can’t he just do it or when I am stuttering why can’t he just be patient , or ask me how my day was and comfort me. Today I have just been sad all day , my birthdays in 2 hours and I just feel very down . I just feel like running somewhere far away to another country and live by myself in the middle of a forest . I am tired of this disability , I am fed up when I can’t even say thankyou to someone in public . Why do we have to live like this ? I still wonder how I have lived so many years with this curse and if it will ever be curable within my lifetime .