LAES

Hi I am currently in year 11 and dream to enrol in lae stratford and study Maths Physics and Economics . I have recently received my mocks and have some questions
My top 8 mocks
:Maths- 8
Combined Science - 9-9
English lit and lang - 8 7
RS- 9
Economics- 9
Geography- 9
APS- 8.5
Q1. Do I have high chances of getting in ( I have no priorities)
Q2. Can I get predicted a 9 in maths if in my mocks I got 8 ( p1 7, p2 8 p3 8) I had done a lot of silly mistakes and know I can do better
Q3. Is life at lae stressful?
Q4. Will my 8 in maths (if it doesn't get predicted higher) affect my chances if I want to do Maths Physics and Economics