EnigmaticClarity
Studious
Do 1 or 2 hours a week on eBay. It isn’t hard. It isn’t all or nothing. Have 20-40 things up at all times. I don’t buy things with the intent to sell but I have records, comics, toys everywhere. I don’t view it as a way to profit. These things are already a sunk cost. I view it as a way to stay sane and recoup some of what I spent. Hoard boxes and bubble wrap in your garage. Make sure your printer works. It’s easy and kinda fun even and nice to know something has a bit of a reprieve from its destiny into landfill.
These are all essential skills any responsible collector should pick up if they don't already have. I also do all of that, and whenever I go a few months without listing things for sale I feel highly irresponsible.
The one exception to what you're doing is that I have a split in what I collect. There's the one side of my collection that I do view as a sunk cost, but there's a separate side where I absolutely look at it as a way to profit to make my collection as free as I can from a financial perspective. There's always a space cost layered on top of that, but my goal has always been for my collection to completely fund itself and more. If you're not doing that and you're not already wealthy from outside of your hobby then you're risking conflict with either your lifestyle or your significant other's opinion.
My significant other doesn't really like the space my collectibles take up, but she sees me packing stuff up that I've sold and has heard enough stories about my collectible wins to rarely ever bug me about it.