Hi Mr. Moe.
You don't know me and I don't know you. But I do know what you are describing and it is very difficult to deal with alone. It sounds to me that other than the ones on this site you are alone in this time of trouble.
You owe your daughter your protection. You also owe yourself your protection. You are a valuable human and deserve the help you need. In times of severe mental strain the best course is to get professional help.
If you can not afford it there are sources for this help anyway. Your local department of health can direct you to the proper professional help.
Please look in to this. Seeking this kind of help at a time like this is not a sign of weakness it is the sensible thing to do.
If what you describe to us is truly your present state of mind. "please" seek out this source of help.