I thought school made you smarter?

Ever since school started my mental health has been suffering. A few days ago I was at work and I had just put the last bag of groceries into the man's cart. I turned and looked at him and instead of saying "Have a nice night", I said "Have a happy birthday!" He looks at me and then quickly pushes his cart out of the store. The cashier was extremely entertained as was the woman behind the man. I however felt like an idiot and blushed an imprsive shade of red. Then the other day I was talking to one of my friends and in the middle of the conversation I realized that I could not remember this person's name even though I have known him since kindergarten. So we finished are conversation and then he said see ya later Krystal. I just waved and walked away. I remember it now though his name is Shad. Shad Loveland. Well hopefully my mental health will return. Until then if I forget your name forgive me and tell me it again.