Scootaloo is a teenager that is looking for her calling. Naturally starting within her favorite hobbies (writing, flying, racing, clearing clouds) she starts to see her best friend, Rainbow Dash, is better than her. Rainbow Dash brags about how awesome she is to Scootaloo's face and she starts to feel like she will never have a purpose.
Listen. If Scoots has a lot of lines, don't make huge dialogue pieces. Separate it like regular.
6850019 Scoots is telling the story. It's first person. It is also the first time I've written in first person and I wanted to separate the narration from the description.
I take it that you're writing in first-person. Never write in first-person and the main character has quotation marks around what they're saying. It just confuses the reader. Also, never start a story with something like, "I'd like to tell you all a story about my young life and what lead to my death." It just makes the reader think, "Boring! Onto the next fic!" Just start the story. Start with something mysterious, or something describing the setting and such. Something that welcomes interest into your fic.
Huh? You said people. How can a Pegasus and an Earth Pony be a person? Also, "was" should be in between "mare" and "walking". Otherwise, it's just a fragment.
No need for the quotation marks.
The sentence should be, "The young couple was laying in their bed, talking about the possibility of having a family of their own."
No need for quotation marks. Also, "Sigh" is not needed.
It should be, "I guess, from right at this moment, I am being created if these are my parents."
There should be a comma after "later".
"Marefriends" should be "marefriend's", and "screams" should be "screamed".
There should be a comma after "do", and a comma after "home".
No need for quotation marks. Also, "that" should be "this", and "where" shouldn't be capitalized.
"Marefriends'" should be "marefriend's", and "foal sit" should be "foalsit".
It should be, "One day, though, the foalsitter was busy, and the stallion left for work since his boss called him in to work personally."
No need for quotation marks, and "from" should be capitalized.
Overall, this story has potential, you seem to have great ideas, and I like this fic, but you need to work on your grammar. I will review your next chapter later. I hope my constructive criticism was helpful.
Why did you cancel it!? This was pretty good so far
6878477 Writers block for the next chapter. I will resume it once I can get a good flowing idea and build on it.