One thing that really works for be is putting words I can say in front of whatever j get stuck on. For instance when I get a call at work I’ll answer with”hello my name is Rudy how can I help you.”. I usually always get stuck on my name but putting “hello my name is” in front of It kinda tricks my mind. At the end of the day you just gotta be comfortable with who you are. I know that’s easier said than done but it’s something I strive to do every day. Hope that helps!