you weren't born deaf .. you became hard of hearing (or deaf ) at 5 ( if I don't know wrong ) and then you slowly went deaf.. that's a different story.
The truth is we do not know for sure, my mother thinks we were born deaf, my father really doesn't know, my grandmother thinks we lost our hearing at the age of 5 from illness, there are many stories being said in the family because the doctors weren't sure what cause our deafness or why we became deaf, because for one they didn't have hearing tests way back at the time when we were born and we wored hearing aids at the age of 5 or 6, and we were identify as being hoh and slowly becoming deaf through out the years, part of me believe it's because I wasn't wearing my hearing aids everyday...but the point here is I didn't have to hear in order to learn to speak, anyone can speak and in order to learn to speak, you have to put a certain amount of effort into speaking and what is more, the people whom you converse will be able to help you to find ways to say what you are trying to say... It seems reasonable to think that this would contribute to your language learning...