Baby fell. Blood everywhere. :(

You guys, I made the worst mistake this morning. I put my baby in her Baby Bjorn bouncer on the floor and I turned around to get her toy before strapping her in.  I should have strapped her in first; I know better!  I heard a big thud and she had fallen face first on the floor and was bleeding from her mouth! Her lip is cut, as well as her gum.  

I feel terrible!!!  My husband was home at the time and was trying to reassure me that it was an accident and I'm still a good mom, but I don't know how to forgive myself and move on. The thing is, it wasn't really an accident, was it? An accident is when you did everything you were supposed to do and something out of your control happened.  While I never imagined the baby could maneuver herself out of the bouncer, I'm a big believer in best practices and I know I'm supposed to buckle her in. So she only fell due to my negligence! 

I know it's not helpful to keep beating myself up, but I don't know how to get over the fact that it was 100% my fault.  And honestly, I feel like I *should* feel bad. I deserve to feel bad/be punished.  Ugh.  I just hate myself. 

Idk, at least I learned my lesson when she was only a few inches from the floor?  

I guess what I'm asking is, how do I move forward knowing that this was absolutely my fault?  I feel like my judgement cannot be trusted now. If this had happened while she was in someone else's care, I don't think I'd leave her with them again.