Since the other replies have tried to educate you more gently, or more amusingly, let me just spell it out for you:

Pointing out that you're an idiot in the course of also attacking your argument (even doing so rudely) isn't "as hominem".

Ad hominem is when you don't engage with the argument at all, you dismiss it based on the person making it. It doesn't even have to be rude or insulting. Dennis Leary's old joke about not believing a Priest teaching sex ed at a Catholic school is an ad hominem.

"I won't engage with your argument because you're a Tankie and therefore self evidently wrong" is an ad hominem

"You're a fucking idiot whose wrong and here's all the reasons why you're wrong, you fucking idiot" is not an ad hominem, it's just being rude while actually addressing the argument made.

I hope this helps. I doubt it will.