1st, why is it so vital that you have straight 4.0?
2nd, is ur dad the one wanting the perfectionism, or is it you?
3rd, it is the beginning of the school yr. you have time to get those grades up.

hav you been diagnosed with an anxiety disorder? hav you seen anyone about it? i suggest talking to a doc or maybe a college counselor. they may be able to help you find ways to relax a little bit, and if you are having a hard time, juggle ur schedule.