I often find that the more I think about a certain issue or problem, the more stressed and unhappy I become (it's called "ruminating"). On the other hand, if I can manage to let go of my worries and not dwell on them too much, I tend to feel happier and more at ease. In English, we might express this as: "the less I think about it, the happier I am". I'm wondering if there's an equivalent expression or phrase in Chinese that captures this sentiment.
I tried to translate it myself as 我越不考虑这件事，就越开心, but I'm not comfortable with the grammar and feel like there might be a better word choice than 开心 (here "happy" implies "worry-free").
Question: How can I express "the less I think about it, the happier I am"?
(Thanks to Assistant for writing a first draft of this question.)