i grew up to a loving family who taught me that God exist..it's true...
me and my family have a strong faith in God...
we had enough proof that God exist...
and if God does not exist, how will you explain miracles/miraculous healings done by praying and being devout to God or to Jesus??
I am growing very weary of your extremely naive questions, sorry to say. But okay, here we go.
First, note that just because you grew up being taught that God exists, this is not sufficient evidence for his existence. Until a certian age, you were taught that Santa Claus exists, but greater reasoning caught up with you. Needless to say, you certainly think it would be foolish to worship him.
While we're at it, my whole family could believe that santa claus exists, but does that make it so?
We all like the idea of what we were told is the whole truth and nothing but the truth. This is easily explained scientifically, but that is beyond the scope of your question, so I won't go there now. But of all the different beliefs parents tell their children, all of them can't be right. Somebody has got to be wrong. How do we go about finding this out? Well, we investigate using the only tools you can use; logic and evidence. In return, it is only fair to investigate ourselves as well, to learn to ask questions and think unbaisedly and turn them introspectively. I suggest you do so.
The prayer is easily explained, it is nothing more than a self-fulfilling prophecy. If you don't know what that is, look it up and read about it.
I take it you've never actually seen a miracle. And by miracle, I mean something that cannot possibly be described scientifically. Am I wrong?