Sounds like you are having an awful time and I feel so sorry for you. I am up North but you could try this link
I really think you need to get some help if you are coping with this on your own. My experience of Social Care for my Mum from our council has been exemplary. We pay for private care cos Mum has savings but you could try the link above and see if you can get info on your particular issue or put you in touch with local carers groups who could advise you. Don’t be afraid of reaching out for someone to talk to, even if you don’t find the right place straight away they may know who you need to speak to. I wish you well.