@Annieways told me I had to bump this with my own answers so
Twins. One went missing and the other was like “oh no she went missing, I need to cover for her and not tell our parents or the police even though we’re only 16!!!”
I did, and I completed it 
15 episodes, baby!
And I did also archive it. Not as soon as the feature came out… But… a little while after it had been out. Because I got a heart attack every time someone was telling me that they had started reading it after reading my other story. I realised I had the skill and ability to make it better so I archived it with plans to rewrite it sometime this year
This show I was obsessed with where the main characters were twins. I wouldn’t quite call it a fanfic of that because I changed a lot, but I got frustrated with the way it was heading towards the end so I was writing this to satisfy myself more than the show did.
Both
YES! First I was worried it would seem like a fanfic so I made sure enough was different. The only real similarities were that they were twins and it was a mystery plot, which they strayed away from anyway 
I was also originally going to have a murder but I saw some line in the guidelines that made me think murders weren’t allowed so I didn’t want to risk it.
Everyone says this, but “SO FAR”. I’ve been featured twice, I know how to code in choices. I finally figured out how to make characters kiss! Not only that, but I know how to engage with my audience, how to best promote myself and how to accept feedback.
Basically, I’ve come far enough to understand that story needed to be rewritten. I’m like legit embarrassed that I once posted that link on the old forums thinking it deserved more reads even. What was I thinking??