If you own the house, plant evergreen trees. I noticed how huge the difference was when my neighbor cleared a bunch of theirs, now we hear traffic, sirens, and noise from a local school we never heard before. Since then a big hedge we planted (viburnum) has really helped.

10 minutes of yoga a day has made a big difference for me. Not magic, but takes the temp down within a few days. I picked up both anxiety and the yoga unit over Covid, and it’s pretty easy to stick to with a couple videos on YouTube. I even set my morning alarm to be a “yoga you can do in bed” alarm and it really helps

Get enough sleep, and don’t smoke. I didn’t follow this advice, would consistently stay up late talking to friend on school nights, or pulling all nighters to catch up. As a result I am shorter than my father and both my grandfathers by a few inches. I’m convinced that’s what did it.