I'm afraid I'm becoming a bitch

I'm afraid I'm becoming a bitch I'm 18f, I started stuttering when I was 11 and at 13 I stopped speaking, stopping having friends, etc. I don't think my stuttering was that bad at first, but there came a point where I became so obsessed with it that I could barely open my mouth because I was so afraid of speaking. Result? Well, I feel like it has isolated me a lot and that I don't know how to socialize, because of course, when you don't speak for so long your social skills go to shit. Well, I also feel like stuttering has made me completely obsessed with myself. How am I talking? What will they think of me? Will I stutter a lot today? Well, I guess you all know very well what a stutterer thinks about during bad times. Now I work in a restaurant and I don't know why, but it's like I'm not such a stutterer since I started working there. I've gained confidence (with my colleagues I hardly speak because I still have anxiety, I'm still a stutterer and I feel like my brain is predisposed to not say a word). I feel like after being silent for so long, resentful of myself, a kind of hatred has developed inside me that makes it impossible to see anything good in life. Well, I don't know how, but I've ended up getting angry with my boss. She says I don't behave well with clients, and she's probably right because that's what I say. I'm so resentful that I can't help but show my anger sometimes with clients who are more annoying than normal. I mean, I'm a bitch, I can't help it, and now that I don't stutter and can say things more freely, I've realized the rage I have inside me.