Thanks for your message, and sorry to hear about this.
Section 11 of the Landlord and Tenant Act 1985 provides for certain circumstances when a landlord has a duty to repair a property and, when they do not do so, damages or compensation can be recovered by the tenant. The landlord does have a duty to ensure that the home he provides is fit to live in pursuant to the Homes (Fitness for Human Habitation) Act 2018. Fit to live in means that they are safe, healthy and free from things that could cause serious harm. If rented houses and flats are not ‘fit for human habitation’, tenants can take their landlords to court.
If he is also harassing and bullying you then you may take legal action against him. I would suggest you report him to the council in the first instance so they can look into this behaviour. If you ever need to take legal action you can either instruct a law firm which you can locate here https://solicitors.lawsociety.org.uk/
Or contact one of the organisations listed below who can assist you for free
We are Advocate
They match members of the public who need free legal help with barristers who are willing to donate their time and expertise in deserving cases for those who are unable to obtain legal aid and cannot afford to pay.
LawWorks is a charity working in England and Wales to connect volunteer lawyers with people in need of legal advice, who are not eligible for legal aid and cannot afford to pay and with the not-for-profit organisations that support them.
Law Centres Network
Law Centres deliver advice through lawyers and qualified caseworkers and defend the rights of people who cannot afford a lawyer.