People who have been in real street fights, what was the real experience?

If you've been in a street fight, attacked, or have had to defend yourself in a real life situation I have some questions I am curious

Was your opponent experienced?

How did your training help or not help?

What would you say the most important things are in a real unexpected self defense situation?

What where the most humbling things or hard truths you learned in your experince?

Ive always wanted to ask trained fighters this!