Yes, retraining your brain can help you overcome your timidity. It is because shyness is often a result of an imbalance in the amygdala and frontal lobe regions of the brain. The amygdala is responsible for emotional responses, while the frontal lobe helps us to plan and execute actions. When these two regions are out of balance, it can lead to shyness and other problems like social anxiety. You can train your brain to be more confident, including cognitive behavioral therapy (CBT), mindfulness, and self-compassion training.  CBT teaches you how to change your thoughts and behaviors to overcome shyness. You'll learn to manage your emotions more effectively and build resilience against future setbacks.  So, if you're looking for a way to overcome your timidity and feel more comfortable in social situations, consider retraining your brain. However, always consult with a professional before starting any new behavioral program - there's no guarantee that it will work for everyone.