I think I abused a kid I babysat.
What makes you think you abused them?
I don't need to explain it to you, you haven't lived my life.
If you actually abused a child, you need to get help. The parents hired you because they trust you, and you breached it. Depending on what happened, you might have damaged the child emotionally.
Whatever, you don't know what happened.
All I know is that according to you, some degree of child abuse took place. Hopefully it wasn't something extreme and damaging. But if you feel compelled to engage in that kind of behavior, you should seek help,