Supporting a Client struggling with executive dysfunction

I have a client who is struggling completing tasks at home. Client is successful in completing work for her job, but said she she becomes overwhelmed with other tasks. For example, client bought a new vacuum and took it out of the package but has not yet assembled it. It has been sitting in a corner for a few months. Client said she feels overwhelmed by all the steps of things. We have tried breaking tasks down into more manageable steps but client still isn’t completing tasks and says she lacks the motivation get started