Forgive me for the length of my question. I know there are many questions like mine but, given my situation, I feel as though I need a more specific answer from someone who maybe is more experienced in their atheism and telling people.
I was raised in a very strict Pentecostal family as the granddaughter of pastors and music leaders on both sides of my family. As a child I fully believed in god, as I was brainwashed to do so, and kept my faith throughout my childhood. Despite the fact that I was abused by my father figure, I remained a Christian, simply because I was sort of brainwashed into believing from birth. When my mother divorced my father and the abuse stopped, I started to look back and try to figure out why god would have allowed that to happen to me and many others. This led to me studying the Christian religion as a whole and, the more I studied, the more I questioned, the less I believed.
Now, as a 16 year old, I have been studying all religions trying to figure out what the truth was. About a year ago I came to the realization that there is no god; or at least, not one that an organized religion believes in. A couple months later, I realized that my belief had a term: atheism. Ever since, I have been a very devout atheist, but am still studying religions and science to validate my ideas. I try not to discuss my childhood when talking about why I am an atheist. Many people believe that my experience has caused me to be angry at god and defy him, while the reality is that my experience only led to me questioning Christianity and then studying it.
Last month I decided to tell my mother that I was an atheist, who later told my grandmother. The sight wasn't pretty. They both ganged up on me and told me how I was "going to hell" and that it is "just a phase" and that I'm just "being rebellious." Ever since, the two have forced their religion down my throat and force me to attend church services regularly, where I must still pretend to be the "perfect pastor's granddaughter" even though they know it is not my belief.
I want to tell my whole family that I am an atheist, so that they will not force religion down my throat. How should I tell them? Should I even tell them?