While no stranger to keeping secrets herself, the Thirteenth Doctor lived a life full of conspiracies and unearthed truths that left her unsure of her own identity. Though she managed to hide her insecurities behind a dynamic, curious and endlessly caring persona, she would unleash her furies in short outbursts when in the heat of a stressful moment.
However, these moments were few and far between, with the Doctor usually believing in hope, compassion and providing help to anyone who needed it.