Hello, thanks for your application. There are however a few things in your story that doesn't work lorewise, if you would be willing to adjust we might be able to work something out.
First of all I'm assuming you're using human years when saying you left as a 10 year old? Elven is prefered which would be closer to 30-40 or so.
Also if your character is of a reasonable age to join the Sang Real that would mean you fled 40-60 years ago or more, which would first of all have made you not present for when the high elves turned blood elf. Meaning you wouldn't have been a Blood elf, and orcs would've behaved hostile, as they haven't allied with the Blood Elves before very recent and always been hostile towards High elves.