There are plenty of strategies you can find online or in speech therapy. But for your own sake the best thing you can do is accept it and become more comfortable with it. It’s easier said than done, I mean, I’ve been there but after years of trying to get around my speech I’ve found that self-acceptance works better than any method to mask it. It’ll never stop being a pain to deal with but acceptance of your situation and owning it will make your life a lot easier