Will cbse2011 correction be easy for 12th class?

i am a student of cbse school ... I have given exam of 12th class this year (MBiPC).. I did not do my papers well. . I 'm sure i will get 27-30 in the theory papers out of 70., and 55 .. Out of 100 in maths .. Can i expect more ? I need atleast 60% in phy , chem , maths .. Im worried , will the correction be lenient ? Plz tell me , i m so tensd .. Cant sleep ..