Hello Djmac10
I am so very sorry to hear of your situation with your 25yr old daughter and also your 30yr old adult child with cerebral palsy, you certainly have a lot to contend with and my heart goes out to you
You say that you find yourself scared of your daughter and also feel guilt because of the limitations that you have put on her, you very wisely put the limits there for your own protection and now your daughter is reacting to that in anger.
As to the fear and guilt that you are feeling maybe you could take a look at this link, you might find it useful:
Fear, Obligation and Guilt (FOG)I look forward to hearing your thoughts x