She'll still be incredibly smart but has a tendency of hiding it, fearing others will perceive her as an insufferable know-it-all. That insecurity drove her to neglect her studies in favor of social activities. Every after-school special about peer pressure, she could benefit from them. This part is subject to change, but I'm thinking she got pregnant young and was sent away to live with her grandparents during that time. She's recently moved to France to rekindle the relationship with her mother, a retired surgeon, but things remain frosty and silently judgemental. She 100% needs people to help build her confidence.