I feel so bad! 😭

I feel so guilty, my 5 - month-old girl was sitting on the floor, and she feel over and hit her head on the wood floor! 😢 I usually watch her closely because she doesn't have the best control yet when she's sitting, but I took my eyes off her for a second. She started crying and it just about killed me! I feel like a terrible mother who's now given her child brain damage 😢