bad client's project management

[mounirawy]

My client has a really big project. but he can't manage it at all. and he can't manage his requirements every day he adds features and change features. I can't continue project by that management. till now we made 4 hours zoom calls just for the prototype and he still updates the document altough this is a fixed price project!

Is closing the contract with client like this will affect my jss score? if no. how can i guarantee this?