No-- no, don't be sorry. You're okay. It's fine, Teddy. You just were a little too ambitious. It was bound to happen- you've been cooped up in the house for ages with people waiting on you hand and foot.
Shh. It's okay-- you, you haven't done any magic in weeks, Teddy. And your healers have all said that you need to take it slow, and not pressure yourself too much, because it's going to take a while for everything to come back.
It's okay. You're okay-- it's going to be fine, I promise.
You need more time, Teddy. No-one else is worried about how you're doing, are they? You've been through a lot. You were in a coma for weeks and sustained brain damage that we don't even fully understand.
I know it's frustrating, but you need to give yourself some slack. Look how much you can do that you couldn't do as recently as Wednesday! You'll get back to how you were, but you need to be patient and not so hard on yourself.