Can anyone help please

I was with husband from 2014 to 2017 during that time he repeatedly raped and sexually abused me.

I told my sister in January 2019. She called the police for me. An officer come to the house and took some basic details. The police officer said they would contact the police from the area where the abuse happened and that once they got back In contact I would be asked to do a video interview.

I got paper work in the post that come from the police from the area i lived in when the abuse happened. The abuse was not just sexual. It was every kind of abuse.

My video interview is Thursday. I am scared they wont believe me

I am worried because I dont know what they will ask

I am worried because its hard to talk about

I am also worried they will not believe me based on what the police reports say the police reports mention I am mentally ill, I dont mind that because I do have mental health problems but it says I am An alcoholic and I am not I dont drink every day and I am not dependant on drink, my husband was the alcoholic

I never reported a lot of the abuse at the time I was scared and reports just say stuff like no one physically armed both parties agreed they had an arguement