My IPHONE 5 home button is not working

My iphone 5 home button is unresponsive. Is there any way to fix it at home? If i have to get it done, how much does it cost? I rarely drop it and i always take good care of it, but today it went through two nasty falls, and suddenly it stopped working. Is this the problem? I'm confused as to why it would suddenly stop working.

My friend has this same problem you just have to press it Really HARD

LOL "Really Hard" Anyways, enable Assistive Touch, google it.