Cleaning .......?

so ive been cleaning all night ... its 11 freakin 30 ... who cleans at 1130 at night? im trying to get all my studying n finals done alonh with thoroughly cleaning my entire house by saturday that way its nice n puurrttty when my dad comes to visit ... but cleaning past dark? not kewl! my friggin back hurts ... im 22 yrs old n my back hurts?!? pathetic ....