Lady here.

You don’t have to be sorry, just stay safe and keep trying to be a good person. I wish you well on your recovery.

edit: It’s not so much about being overpowered, though that is a thing, as the mental exhaustion from having to deal with so many people who think you owe them something. The book “Verbal Judo” helped me way more than self-defense classes, I recommend it, it’s the art of de-escalation by being snarky and delightful.