MY book! please comment on any grammical errors

[100,000,000infinity]

Prologue


I joined the K.N.D. and I was a cadet. I trained for years until I was an operative. Since all the kids in sector V got old, they had to make a new sector, So they chose me. I picked the name sector R and the number 100,000,000 infinity. Soon, I became leader of sector R and then, I had to find at least 5 kids to be in my sector, so I thought, why not my cousin Anthony? He joined about a month ago, And graduated last week, he’s in my sector now. Before Anthony became a K.N.D, Cristian was the only kid in my sector. When Anthony became an operative, Cristian forgot about the K.N.D. , so I reminded him about it, and then he remembered, (including me) Now I have 3 kids in my sector Cristian’s number is 20,000 and Anthony’s number is 29.You might think we’re just regular kids....
and if you do.....
well, you’re wrong. Our lives are just about to get a lot more complicated.