Op, you are going to need lots of support as are your dc, adult or otherwise.
It may help you to see your gp and ask him/her to refere you for counselling.
If you have dc that are still children then contacting your local MASH (multi agency safeguarding hub), they will be able to get agencies such as ss to help and support you and your dc.
Contact the dc school, collage etc to see what they can do to help via pastrol care etc. Also so that the teachers can understand what your dc may be going through.
There are organisations such as LifeCentre that can help people who have been sexually abused and people whos loved ones have gone through sexual abuse.
Womans Aid will be able to offer you help and support so that you can exit the abusive relationship safely.
Do you have real life support? You say that friends and family do not like your abusive husband, ask for help and support from them. They are most likely to want to be there for you and your dc.
Eat well, soups amd smoothies are easy to digest and will help tp keep tour body strong. Your immune system will be impacted at some point, multi vit and minerals will help arm you against illness.
Drink lots of water, stay hydrated. Teas such as valerian root may help you to sleep, you are going to need to sleep. Dreams are the brains way of filtering and processing the day.
Try to go out for walks, even if you dont really feel like it. Walking helps to keep the the body and mind healthy, being amongst nature is particularly good.
I hope that you and your dc, especially the dc that has made the disclosure can stay safe, heal and get though this awful time.