Reply to Re: How do you manage an ignorant, stupid sister?
If you don't have an account, just leave the password field blank.
Honestly, it sounds like your family gives a bit much weight to something like school grades. Bad grades aren't the end of the world, especially if you're in "High School" or some such, the only bearing they have on your life is which school you will be able to go to after you finish the current one.