I think that your manager really values you, and understands that you just had a bad day- otherwise you would have picked up a sense of annoyance from her about today,rather than the caring attitude she showed towards you.
I suggest you make time to meet with her soon to discuss the situation, in order to settle your worries and also to work out your strengths and the best way to ensure you can carry on making good progress.
This is a learning oportunity for you. The things that caused you to be upset might happen again- how could you manage the situation better next time? Most people who are ambitious also have challenges- if you were the kind of person that sits back into a comfort zone then you will never be challenged. And you’re also human! Try to think past your emotions and focus on solutions.