I was just saying 'I'll be there' and it turned into 'at being a grammer' and I'm like why would you do that

I tried to say 'at least it's not only that' and it turned into 'at least it's not only that but I don't know' and now I'm confused

My message was about my family but it added 'a' at the end and now it's like 'with you and your family a' and I don't even know what that means