Of Ticking Clocks and Beating Hearts

Hermione is approached with a time-travel safeguard to right the wrongs of the wars. Sent back in time to the first year of the Marauders schooling, Hermione is given a De-Aging potion to begin Hogwarts over again only this time she must get herself sorted into Slytherin to befriend Snape and some other 'at-risk' students. Can she save Snape without falling for him?