How much of my personal experience should I tell the world?

[Der/die AtheistIn]

Sounds like you're over the brainwashing now, time to stop blaming your parents. My parents sent me to the brainwash place also, why, because they didn't know any better and thought they were doing the right thing. 

What incident? That you were exposed to religion at a young age? Time to get over it. If that's the worst thing you experienced in your childhood you're getting off easy.

I don't know about you, but my parents are moderates. They don't believe in Hell and they also didn't sent me to a brainwashing place. When I was little religion class was obligatory in Romania. 
I actually believed that an all-loving God sends people to eternal torture. I stopped believing that thanks to a friend of my dad. I literally changed my belief in just one day, it was shocking. A shock that could've been avoided so easily by my parents, if they just told me their interpretation.
My parents wanted me to have their interpretation of religion, yet never told me and weren't shocked when they found out I was brainwashed under their noses for 7 years.
I do believe that my parents interpretation of religion is brainwashing as well, but at least it's more closer to the truth. They have no reason to believe that what I've been through wasn't traumatizing.
The incident I was referring to, is the fact that they weren't competent enough to tell me the opinion they wanted me to have.
Because of that, I don't think I can ever forgive them.

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For those of you who don't know, I was raised by moderate christians, who didn't taught me their interpretation of religion until my teenage years (even then, just because I asked them) and because of that I was brainwashed right under their noses by my religious teachers to believe in Hell and other things my parents don't believe. When my parents found that out, they were more concerned about the possibility of me leaving the religion that their screw up. They also showed more concerned towards my unhappiness than the cause of it. You know, caring more about the effect than the cause. 
The reason why I became atheist is because I found out there is no proof for a God and the definition itself is unclear to me.
I sometimes wonder if my parents friends would still want to have anything to do with them if they found out about this incident. I also wonder what the majority would say. I'm not worried, just morbidly curious.
That's why I wonder how much information I should give away. Now it's not the time, I'm not financially stable yet.

First off, you don't "become" an atheist. You are still a human being regardless of the off or on position. You simply ditch the on position for the off position. A light switch is still a light switch, be it on or off. I do agree though that there is no evidence for a super natural cognition by any name, and is also why I went from on to off on god claims.

As far as family, again, only you can gauge them. It sounds to me like you already made your decision. If you are that worried about not having a roof over your head, then it would be wise to stay low, save money and plan for a point in the future where you wont be dependent on them. 

But do know though, you always have a voice here when you need talk about it.

I don't understand. Atheist specifically means a person who lacks the belief in a God. It is referred just to humans. We don't know if other species about as or more intelligent as us exist, if they did, maybe some of them could be considered atheists, but as I said, we don't know if they exist.
How is it impossible to "become" an atheist? It means that you've changed your opinion, it's perfectly possible. I'm sorry, if it's supposed to be metaphorical I don't understand.