Amid the Battle of Winterfell, Arya gave Sansa her blade before she headed out to battle and Sansa went down to the sepulchers. "I don't have the foggiest idea how to utilize it," Sansa told Arya, who said to her sister, "Stick them with the pointy end." Sansa's preparation has never been about the physical battle. She's been prepared by two of the most manipulative individuals in all of Westeros: Cersei and Littlefinger.
While Sansa is definitely not a physical warrior, Arya giving Sansa a knife could return into play when Cersei meets her end.
While down in the tombs as the fight seethed on, Tyrion needed to go out and battle. Sansa places him in his place to get him to remain. "That is for what reason we're down here. None of us can do anything," she said. "It's the reality. It's the most chivalrous thing we can do now. Look reality in the face." For the Battle of Winterfell, Sansa and Tyrion's systems couldn't assume a job.
When they thought they were going to pass on, both Sansa and Tyrion were eager to battle and bite the dust together. Since the Night King is dead and Cersei is the principal enemy.
Cersei helped shape Sansa into the lady she is today. Be that as it may, much the same as Arya, Sansa harbors scorn for Cersei. Cersei played a part in having Sansa's dad, Ned, executed, which Sansa needed to watch from just inches away. She helped keep Sansa in King's Landing and far from her family for a considerable length of time.
