Help mistake in commonapp after submition

ibdamned
Tue, 01 Jan 2013 20:41:04 +0000

after i sent out my application, i realised that i wrote “self-taught piano in grade 10, began taking lessons in grade 11, passed piano grade 6 exam in grade 12”, when in reality, i self taught piano in grade 9 and took lessons in grade 10. i dont wanna sound like im lying so what do i do?!! this is all due to my unfamiliarity with the american system, i didnt mean it i swear.