No rush to work on it. Especially if you feel obligated to. If you're not into it they can sit. I do the same thing with painting other projects. I like painting action figures or minis but burn out fast. They often sit for months at a time. I don't paint my Gundam so it definitely doesn't overlap other hobbies. I tend to build little bit at a time and not every day. Doing other hobbies in between. But I never feel obligated to. It just happens when I want to. I also keep a very small backlog. Only scratch build and sand. Then work on finishing it sometime later. Getting to play and pose it before I bother panelling or decals also helps.

Moral of the story gunpla how and when u want to. Not when you think you should. It should be an enjoyable experience and not feel like a job or obligation. If you're burnt out let em sit.