So, my coming out story isn’t that decent, nor is it extremely bad, though it is quite long (I have more than one actually). I’m only going to talk about coming out to my family in this post.
When I was in seventh grade, I heard about the term “bisexual”. I thought that that term was the correct one for me, though I always had a doubt. Don’t get me wrong -- I’ve always known that I was different. I just didn’t see the big deal with everyone wanting to date people all the time and going out and having sex with those people. Anyways, in around September of last year (2014), I came out to my parents by creating a card. Keep in mind that I still thought I was bisexual. I coloured the outside of the card a Tyler Oakley mint green colour and the inside like the bisexual flag. The outside read “hey guys guess what” and the inside read “im bisexual”. So then that was that. After my parents saw the card they came and hugged me. No big deal, right???
Later on (around November of the same year), I discovered the term "asexual" from one of those tumblr posts that describes sexualities. That was when it sort of clicked, kind of like, "Oh yeah! That's me! That is who I am!" I never officially came out to my parents with that. My parents kind of just assumed it when I told my mom that I didn't want to go see 50 Shades of Grey with her because I found sex and things relating to it revolting to watch a lot of the time.
I’m still a tad bit confused with my romantic orientation, but for now I am using the term “panromantic” because none of the orientations I've read have fit for me, aside from possibly “demiromantic”, but oh well. My parents are okay with my romantic orientation because to them, it’s no different than me being bisexual.
Then comes the part that deals with my gender. I just recently came out to my parents with my gender. As was stated in an answer before, I came out to my parents through an email that included a powerpoint that described my sexuality and pronouns/name and everything like that. They were sort of accepting, or at least they tried to be. They still try to be, but they make very transphobic comments a lot and do not use the correct pronouns or the correct name for me (they have both told me that they are not going to either).
All in all, I would say it is the best decision that I have ever made. When you come out, it feels kind of like a weight lifted off of your chest (or at least it did for me). Of course, it's going to be awkward for a little bit, and you are going to have to have a conversation with whom ever you come out with. You're also going to have to come out multiple times throughout your life. It's worth it <3