If you feel useless during this covid-19 period just remember that Sakura couldve prevented Madara from being complete, from activating infinite filleryomi and the awakening of Kaguya if she only destroyed the Rinnegan in Obito's eyes when she had the chance. She also had a LOT of time in her hands to do so. But her uselessness kicked buying Madara enough time to almost kill Sakura forcing Obito to save Sakura's useless ass.
