I'm sorry to hear you are feeling overwhelmed and under motivated. I too am in that place at the moment. Maybe pick the most critical task and do it and only it. Or the easiest one to accomplish so that it doesn't take too much energy but yields some positive momentum. I need to do that myself. I am going to go and finish hanging the drywall in the second room. I'm not going to tape and mud the seams but I am going to hang the drywall.... At least I hope I can make myself.