I'm in the middle of dealing with rookie mistakes as well, and not sleeping as well as I'd like.
Mostly I've overdone the put selling, using margin: I've had some success with it in the past year, selling when volatility was higher (including with stocks that tanked then got back up - so it was not all due to the bull market), so I let it go to my head and I sold too many...
I've come very close to a margin call; I've actually had to empty my main savings account and to preemptively sell some stock that I liked. My realized loss is very small at this point ; my unrealized losses are very high (in part due to sold puts rising, in part due to the recent drop ; plus 1 E&P position lost 60% over recent months) but I'm mostly comfortable with them, since my conviction holds (to some degree - I know moments of doubt, of course).
I'll be fine if the market doesn't go much lower, but it'll be painful if it does before some puts expire/I can unwind some of those positions.
Oh well, I also take this as a learning experience.