Waves -- please stop thinking there is such a thing as 'normal' in terms of emotions, and 'normal' in terms of coping strategies.
Every single person is unique, and unique in her way of dealing with whatever life throws at her, and every single emotion in the universe is just there, like water and oxygen -- there's no 'normal' or 'abnormal' to any of it. There are only practical and impractical ways of looking at emotion and responding to pressures. There is no 'good' or 'bad'.
Try not to be angry with yourself for this blip.
There is no standard in any 'School of Life' that you are either failing to attain or coming top of the class at. There will be no report issued at the end of term, either for your professional life or your private life. Nobody will be waiting to congratulate you or say 'Waves, we need to talk about this D- of yours'.
Try to take everything one step at a time, one day at a time.
Try not to be carried away by enthusiasm for the entire future. Try to avoid superlatives when looking ahead and try to look no further than tonight or tomorrow.
Please try to accept that there are going to be days when you feel shitty and unmotivated and starting to panic, and that this doesn't mean you are crossing some line into 'wrong' emotion.
No plan or arrangement you make owes you the fruit you would like to see it bear. If things don't pan out as you plan it is not a reflection on you.
Feeling shitty, deflated and panicking are not signs that you are failing or that you need punishment or that you deserve any other sort of angry response within yourself.
Feeling fabulous and on top of things and full of plans doesn't mean you are finally getting 'Life' 'right'. There is no such thing as 'getting life right' any more than there is 'getting life wrong'.
You do not owe anyone (here or in your doctors' offices) any sort of linear 'progress' in any direction, or any sort of positive emotion or response to life's pressures.
We are all like a braid, with the good, the bad and the ugly all intertwined. The best anyone can do is try to keep sight of the good but just because the bad and the ugly are also there doesn't mean things are 'wrong'.
It sounds as if you are going to be doing some sort of CBT? from what you said about your psychiatrist visit -- I think this will be a good way to learn to take each day as it comes, with no judgement from within as to how you are dealing with it all.