How the FUCK do people go out without headphones and music?

I lost my headphones, need to buy some new ones, but GODDAMN HOW DO PEOPLE LIVE LIKE THIS? I tried going to the gym and couldn't make it more than one set before I had to leave from panic attacks. My fucking chest hurts from stress and there's people who just live like this normally? All the noise, no way to possibly focus or relax, just constant cacophonous noise ripping through my head.