Well since the Minimum stake time is 1 hour I would say just combine all your inputs into one to create a quicker building weight, once staked I would recombine the balance again into a single input and wait for the stake, rinse & repeat.
It has been 18 hours now and the stake info icon in the lower right of the wallet( that's what I am calling it) still says estimated time for reward 1 hour.
I have received no stake rewards at all and the stake value is still at 0.00
What am I doing wrong?