Dude, no offence, but an INFP would be much less likely to post these kinds of threads, you NEED feedback and you aren't afraid to ask (no judgement, I totally relate. I am still trying to rein this tendency in). I also think you're kind of in an awkward depressing stage of your life, which makes it hard to relate to the ENFP caricature you see everywhere. From what I can tell, you've been going through a lot.
Socially, it took me a long time to figure out how to be likeable, because I had no control of my Ne, and not a lot of experience to guide me either. I basically had no friends until late high school, and even still, I've only really come into my own socially over the last few years (I'm 23). When I was 10, I was too afraid to interact with others (they thought I was a freak), so I used to just sit hide up a tree during recess and read. Some people still find me "weird", or "too much" sometimes, but most people really like me. Even though I don't always feel like a little ball of sunshine, a lot of people I encounter tell me I brighten their day. I think it takes a while for us to figure out how to use our Ne properly.
Oh and for the record, I consider myself to be socially introverted (with occasional outbursts), and I tend to only get very loud and excited when I'm in Ne-Fi hyperdrive, so to speak.