I agree with the others: this is a sensitive matter.
You don't provide a lot of detail here (well, much of any, really), so it's impossible to tell how to advise you with any sense of assuredness. So let me just make these comments, based on a few assumptions:
You're 19, so I'm guessing you socially transitioned either in high school or just after? You probably had been feeling feminine for a long time and maybe had friends who were TG or you watched youtube videos and it seemed right? Why not? Makes sense. At that age, you'd be likely to have lots of friends who would be very supportive of such a change in your life. And you've been in that transition long enough at this point for your parents to begin using your preferred name: often a huge leap for parents to take. Now, though, after however long it has been, you've begun to realize that you were wrong: you are not a girl/woman at all. You're a boy/man who just likes girly things sometimes.
Am I in the right place here?
This is all very different from someone (like me) who persistently from an early age understood from deep within that she was female no matter what her outer body broadcast to the world. It never mattered how I looked or acted; even in all of the years I desperately hid myself from the world and pretended to be what I was not, I still knew at all times the truth of my self, and there was never a second of doubt. You sound as if you were/have been rather in flux, in search of something, looking for an identity, an understanding of yourself that you have never been clearly certain of. There is absolutely nothing wrong with that. What would be wrong would be letting yourself get stuck with an errant early decision you made while trying to find that self you were seeking.
Talk to your parents. Believe me, they are mourning their little boy and, though they are trying hard to accept their new daughter, would love to have their son back. Explain to them that it was not a "phase," but an honest attempt to figure yourself out. Tell them the whole truth. Maybe not the LG part, but certainly the feminine part. (Why not? Being a cross-dresser is a lot easier to understand than being TG, and it will explain why you were mistaken. Most important, though, tell them that you really appreciate their support when you transitioned--how much it meant--and you're sorry for the pain it must have caused them. And assure them that you're not going to be bouncing back and forth: you're a guy, even though you might like to indulge your feminine side at times.
When you talk to your friends, tell them the same basic thing. My guess is that they will be on your side.
This is the best I can do without more specific knowledge of your life. I base it on my own TG life and my experience as the mother of an FTM son. I hope it helps.