Don’t create your experiment and judge it at the same time. Creation and judgment are very different thought processes and can interfere with each other, and must be done separately. Experiment with exploring every idea completely first (writing it down, drawing it out, actually trying to do it). Only then move into editing, curating, and judging to get to best version of the idea.
I work with aspiring writers every day who say they'd love to write "one day", when they stop working, or when the kids have left home.
Stop putting your creative life on hold. Develop a side project or two. As this article suggests, look at them as experiments.