I can’t even say my name unless I say “My name is”. I also have blocks here and there. I always start a sentence with ummmm then I start talking, works for me. Or I take a deep breath in and on the exhale I talk. Sounds kinda weird but ehhh whatever works for you. As for, if it gets worse I’m not sure, mine gets a little better unless I’m stressed or anxious then I stutter tremendously. I’m 29F