First, Lupe never gave up practicing how?. Well, first she would always squeeze her thumbs against two large pink erasers for a long time. She would keep doing it even her thumbs were sore and tired. Also It questioned her parents why he thumbs were so sore and pink and purple.
Also, She did push ups on her fingertips on her thumb and pinkie.
Next, She never stopped even the opponents were better than her. First she goes against her brother