Have you tried active noise canceling headphones? They'd be a cheap experiment and easily returnable if they don't help. I'm not as sensitive as you but I also

Have you tried active noise canceling headphones? They'd be a cheap experiment and easily returnable if they don't help. I'm not as sensitive as you but I also dislike loud grumbling noises (especially cars and trucks and similar) and my Airpods Pro really help with that when I'm out for a walk. With or without music on, the combination of the silicon earplug and the electronic noise cancelation are pretty good at significantly decreasing (though not completely eliminating) mechanical noise. For flickering lights, I wonder if polarized sunglasses can help decrease the total amount of light reaching your eyes, both directionally and in terms of wavelength? Might help turn a harsh white/blue spark into a gentle amber twinkle. As for laws, some US localities have noise regulations (like CEQA, the California environmental law that measures noise impacts of new developments, among other impacts). In Canada there seems to be a similar Impact Assessment Act and also possible municipal regulations. Worth checking and asking: https://www.canada.ca/en/health-canada/services/noise-your-health/management-canada.html https://www.canada.ca/en/health-canada/services/noise-your-h...