help please

okay i woke up and tried starting my car this morning. all i get is a click, i tried bump starting twice and didnt work. it's night now, so i turned on my lights and tried starting. still, click... but when i do so my entire dash goes dim and my head lights turn off. when i don't try to start it, lights come bak on. could this just be a bad battery? or starter? if it makes a difference i notice my fan kinda move, but doesn't crank at all. thats NO crank. it'd be an easy fix if i had tools and a tester. but i'm stuck in another town w/o tools, and cant tow because home is 130miles away...