I have no qualms about starting a new knitting project even when there are already several works in progress. Sometimes when you've had a rough day, there's nothing like casting on a new project as a pick-me-up. If the yarn is in stash, the cost is low. It's better than destructive, unhealthy stress coping behaviors.
I had some freshly dyed yarn designated for a new project and had told myself I would cast on this coming weekend. I'm not sure why I set that timeline for myself - maybe holding onto hope that I would finish some other project in the interim. I do have several things on the needles, and it would be nice to finish a couple of them. It's good to set goals. In a roundabout way I was setting one for myself by holding off on the new project for a few days.
Yesterday I needed a little boost and decided there was no point in waiting. What difference would a few days make? Life is short.
Fresh yarn, new project. Just what I needed.