Stumbling/Stuttering I can’t live like this

Stumbling/Stuttering I can’t live like this Hi, I’m currently in High School and I’m having the worst year of my life. I’m not a native English speaker but it’s my First/Second language (not sure). Last year I was really self conscious about multiple things about me. That cause anxiety and I would sometimes mix up the first letters of two words or stumble. This year I transferred to a new school for better academic success and I decided to become a new me. I was trying to act like somebody who I wasn’t and I felt like people weren’t cool with it. I felt like I couldn’t make anyone laugh so I tried to joke in every possible moment without even listening to what they were saying. It was never an issue in Russian because I’m always the leader of my company and I can easily make connections. Because of that anxiety, the stuttering/stumbling exacerbated. I started talking to myself to try to fix it but it didn’t work and only got worse. Everyday I woke up thinking it would be a better and productive day but it didn’t happen. I started stumbling in Russian too. Now is the most important part. I feel like all of this happens due to anxiety and if I could get rid of it everything would be better but it became an intangible part of me that always on my mind. I talk to myself all the time and I can’t get rid of it. I also feel like it’s because I try to blurt our everything that comes to my mind. I can easily communicate and make people laugh when texting but I don’t know what to do in person. I think of stumbling all the time and I want to get rid of it. I’m afraid to tell my parents because I feel like it would be really awkward and its all the problem of stumbling that I can get rid of if I put the right amount of work in. Please give me some tips on how to get red of it and share your experience with me. I cannot live with this anymore and I hate waking up everyday with depression and panic attacks which prevents me from having a productive life.