Flowers remember you are the same person you were before the DX. You don't need to separate what is what or coming from which, OK? You have time to sort it all out. No one is going to think of you any differently -poorly- because you have another dx that will help you figure things out better in the future.
Now that you know you have a tendency to lose focus, your grades might even improve..or be "easier" to realize.. because you can begin to compensate logically.