Please don't give up. I know exactly how you feel; so worn out and depressed and so very scared and fearful. But you will come through this and you aren't alone. Your family doesn't understand and your husband is just frustrated which is why he gets angry with you but he should reassure you too as to what a lovely person you are, irrelevant of the anxiety. I bet you are a wonderful mother, don't let someone's cruel comments affect you, you are better than that.
I lost my little girl because I thought I couldn't cope with her and my chronic anxiety, I thought I was an unfit mother and people told me that too. But they aren't worth bothering with; would they cope if they had what you and I have? I have loads of love to give and I reckon you have too.
Continue with prayer and try the positive thinking. Look forward, remember just because one day is bad, it doesn't mean the next day will be. Despite the sensations, tell yourself today, right, I refuse to think about anxiety and these feelings for at least an hour. Give yourself a break if you can, curl up and watch the telly for distraction, read a book, do anything that might give you a little relief. Tell your husband you love him and you are trying really hard, that you haven't given up.
Ask for different medication. Again, you are ahead of me, I am too frightened to take any, I'm agoraphobic so find it hard to get to the docs and ask for any!
Read Claire Weeke's books, they are an inspiration and the section for partners and husbands can be shown to your husband.
You are going to be okay, you are just exhausted by all this.
Remember, you aren't alone and I really hope today is a better day for you.