"Whats the highest power prescription contact lenses eye doctors make?"
well w/o even going custom-made you can go to -12.00. but -25.00 is doable (custom made)
"im a negative 10 in glasses"
not even CLOSE to out of the range for contacts. in fact, these are usually the *best* candidates for contacts
"do any of you guys think i can get contact lenses instead of glasses?"
"also, how much would laser eye surgery cost in the states? would it be wise for me to get laser eye surgery done? im only 18"
-10.00 is probably a little too much for lasik IMO. you'd likely need a phakic-iol or "implantable contact lens"
you need to try contacts. most people over about -4.00 actually see BETTER out of contacts then they do glasses (unless they have a lot of astigmatism). better acuity as well as better overall vision. surprised no one has mentioned it to you yet.