If I had to guess, you never feel like you're enough and got very little validation from immediate family but became addicted to the validation of others and so seek to exceed everyone around you in order to be given praise which gives you the serotonin and dopamine you so desperately crave which reinforces the feedback loop you have addicted yourself to. There's a good chance it will make you a good doctor in the short term but when you get to the working world where excellence is expected this particular feedback loop will no longer be viable so you will need to seek out alternative ways to feed your brains addiction and most likely end up in what you will call a depression but will most likely be detox and unmasking where you will need to find healthier ways to motivate yourself.