Year 11 entry to another Selective High School (1 Viewer)

[SuperGirlTaDa]

Hey guys, im new here and umm, this is sort of a backward question..but
basically, my parents want me to change schools from one ranking around 15 to either Baulkham Hills or Hornsby Girls.
I really don't want to go, so i just want to know...what are my chances to make it into those schools as year 11 next year?
I REAAALLY DON'T WANT TO GO.

umm, heres my info

Year 9:
first semester: all A's.
BUT, i think my school gives As too quickly, so my marks were
92% in english
86%-math
87%-science
81%-geography
99%-history elective
82%-food technology
and the A in PD/H/PE

yearly: All A's (i did well in yr 9. 10 not so much)
marks:
81%-english
74%math
86%-science
88%history(mandatory)
97%-history elective
80%-food technology
and the A in PD/H/PE
=(

umm year 10
half yearly:All A's except a B in science=]
marks:
83%-english
74%-math
81%-science
82%-geography
90%-history (mandatory)
98%-history elective
83%-food technology
and the A in PD/H/PE

i heard that Baulkham Hills focuses on science and math, so i know im not that good in those two areas...
Please help, do you think i have a chance?
I don't know much about Hornsby Girls High School, except that they have an entrance examination.

and oh yeah, im not that involved in anything at school, the only thing i've done is Duke of Ed on a bronze level.
and ive gotten only one merit award this year, that's it.