I’m not understanding why a 1 yr old received speech therapy? Was it through a school district funded program because he wasn’t babbling? The goal of speech therapy should be to *not be emotionally devastated by speaking with repetitions*. You need to teach him to let others h-h-h-hear his repetitions. Have him introduce himself to kids saying “Hi! My name is Timmy and I sometimes talk different, like a frog gets stuck in my mouth. Wanna play tag??” This will reduce the hard silent blocks that I’m sure he’s having , or will start having very soon. Look for an online SLP *with credentials in dysfluency*, who is also a person who stutters, and who will do the above.