My understanding is that a radon reading of 2 is the upper bound for reasonable regular exposure. If you're seeing above that, I'd be inclined to look into mitigation.
I think on the contrary if you have a tendency to worry too much things like continuous monitoring systems might not be the best thing for your mental health. I actually was pretty worried since I'm a mild hypochondriac and a friend told me that they got obsessed with CO2 monitoring after getting one. Thankfully for me it has mostly been an occasional curiosity since there's nothing too concerning.