Welcome!

As far as I can tell, you are taking care of this toad fairly well for not having much experience. After taking Amy's advice, if you decide to keep it, you need to do the following.

#1. Get a 10 gallon aquarium.
#2. Get food! Worms are always my first choice because of the lack of crickets here, but crickets would be better.
#3. Keep the place nice and moist, but not soaking. There should be plenty of moisture, but the dirt needs to stay strong. Also, no puddles.
#4. From reading this, I couldn't tell if you had a hide. Try to find one!
#5. Do what Amy said. At the beginning of keeping the toad, cover up three sides of the aquarium.

Try not to handle the toad to much, and keep trying to feed it. She will eat eventually.

However, I do recommend trying to find a smaller toad just like Amy mentioned. The younger the better!