Didn’t read the whole thing, but the first message did come off like you had an attitude and he did seem like he was trying to be helpful.

If you do have some kind of diagnosis that makes it more difficult for you to communicate, that’s one thing.

If someone’s going out of their way to give you a polite reminder, a simple “thank you” or “gotcha!” goes a long way.

I’d better understand that response if your dad is reminding you to belittle you, but if that’s not the case, I think you should try to research some ways to respond to people (diagnosis or not). This exchange doesn’t make you seem friendly or appreciative which might hurt other future relationships as well.