I feel like a terrible mom

I was bathing my baby she is 7 months she can sit up in her own I had her in the tub I always hold onto her well I had to reach up to grab the shampoo I held one of her hands but she slipped back into the water I quickly grabbed her she choked and gagged and it took a few seconds for her to catch her breath she than started crying. shes back to her normal self but I'm scared what if she swallowed to much water i know kids die from dry drowning. it's her bed time but I'm afraid to let her go to sleep. Please no one judge me it was truly an accident I will never do that again I usually have everything I need. right by the tub within reach this time I. I'm a first time mom and dont know what to do. Does she need to go to the hospital will she be okay. Shes also breathing fine making noises and crawling around