How can I be more confident in my stutter?

How can I be more confident in my stutter? I have always been very self conscious about my stutter, I’ve lost a lot of opportunities because of it and it’s made me want to hide my stutter. I never go out on dates just because of the fear of judgement. I’ve always been bullied in school because of it and I’ve also been unable to find many friends because of my stutter. Any advice on how to be more confident?