Unfortunately the subject of intentional breeding on Binkybunny is prohibited, therefore, many active members (including myself) are not very knowledgeable on baby rabbit care, especially wild rabbits whose needs can differ from domestic rabbits.
I recommend contacting a local wildlife rescue in your area to get information on nursing the baby at home or arrangements to send to a rehabilitation center. Please note that depending where you live, housing wild rabbits may be illegal. Again, a local wildlife agency will be able to give you the proper information.
There is a likelihood based on what you’ve described that this baby may not make it, which is unfortunate, but not your fault.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.