Some people are born gardeners I think, and some aren’t. Did anybody else do Candide for A Level French many moons ago, because that’s what it brings to mind for me, “Il faut cultiver notre jardin”, we must cultivate our garden. The concept of gardening being good for your mental health has been around for a very long time.
However, it does beg the question Sidelined - why are you watching Gardeners World anyway if you dislike gardening? Switch it off, problem solved.