Hiii I'm Chanchala...i'm Suffering From Squint Eye...my Left Is Going

Hiii i'm chanchala...i'm suffering from squint eye...my left is going left side...frm birth its not there it starting going left frm (approx) 10 years...now i'm 19 years old...
when i see in mirror r concentrating on one thing the eye will be in correct position n it will be blur i cannot see properly but later i can see properly bt it will go cross
my right eye is also having sight of 0.5 so i'm wearing spectacles...
some time if i continuously see one thing my eye will slightly pain...
is this squint eye be curable???
is surgery is better for this??
is this affect me r not??
please tell me the reason i'm suffering a lot from this...!!!