Welcome LDP. First and foremost that 100 day thing doesn't mean a damn thing, period. You get that 100 day goal out of your head, it's a milestone, nothing more, nothing less. You quit every minute, every hour, every 24 hours and tomorrow you do it again.
Second, you don't HOPE for nothing. Addicts don't hope, we QUIT. Luck and hope will get you no where fighting this addiction. Shear gut wrenching desire and the understanding what it means to be an addict, will get you to every milestone, One Day At a Time, ODAAT.