It would be good to have more information. When you speak of your husband trying to harm you it puts some bright red flags before us, but when you mention that without him you're not able to support yourself and with him you could die, the story becomes very serious.
You need prayers, as we always do at all times, but you also need some kind of counceling and support and a carefully thought out plan of action. Please reach out as soon as you can and do not keep your troubles burried within you, it's the worst thing you can do.