im locked out of my i phone se , not accepting my pin, i have no computer

Follow these instructions to reset the phone, use a family member's or friend's computer (or go to an Apple Store or authorised repairer) : If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

If the passcode isn't being recognised you will have to connect it to a computer's iTunes. Does a friend or family member have a laptop with iTunes installed on it that they could bring to you ?