i lost my phone

You can use any internet browser (e.g., Safari) and log into www.icloud.com/find

Also see: Use the Find My app to locate a lost or stolen device - Apple Support

Other options and information: If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Sorry, I don't know of a way to enhance the tracking but an iPhone usually gives a location that is within a few feet.