Keeping a full record of every covered call I’ve sold on the same stock for 2 years

I started tracking every single covered call Ive sold on one particular stock back in early 2023. Nothing fancy just a spreadsheet with date strike premium collected and whether shares got called away or not. Two years later I have a pretty solid dataset now. Same stock same strategy month after month. What surprised me is how the average premium collected per month has changed over time even when the stock price stayed in a similar range. IV shifts really show up in the numbers. I also noticed my worst months came from trying to time earnings. The boring ATM calls a few weeks out ended up being way more consistent than trying to get fancy. Has anyone else kept a similar long term record on a single stock across multiple cycles. Did it change how you approach your strikes or exit rules. Curious if your data showed anything unexpected about assignment rates or whether rolling out was actually worth it in the long run compared to just letting shares go and restarting.