momentum... it seems that I have lost momentum

cross season came on full speed in September
managed to race the cross bike twice by mid-October
then...
my full speed momentum came and made a full stop

now it is November and there is a double header this weekend
racing options for Saturday and Sunday
each race roughly an hour away from home
yet my body and mind may not be up to it

my legs feel fried
and well
not sure if my head is right

can I roll up on the line and get my head right for race day?