Dying account – tips welcome

My sales of all my ASINS are dying a slow death. I used to sell 7 a day on 1 ASIN now I’m lucky to get 7 a week. I don’t know what to do. None of my ASINS sell anymore. I’m very close to shutting my account so is there any way I can bring it back? My account health is great – it’s not that. Idk what to do.