I forget my answer for secuirty questions

Check the AppleCare number for your country here:

http://support.apple.com/kb/HE57

Call them up, and let them know you would like to be transferred to the Account Security Team.

I dont know :(

If you can't remember your answers then do you have a rescue email address on your account which you can use to reset them : http://support.apple.com/kb/HT6170 ?

If not then you will need to contact Support in your country to get the questions reset : http://support.apple.com/kb/HT5699