I need some advice.

Hey guys I'm back (27)M. I have been radio silent since my last post on here. My TBI is getting worse and is starting to effect my marriage i have caught myself lashing out in anger at my wife (24)F and 6 M/O. It has been a crazy couple of months. Dealt with finding a body at work. Not going to get into the specifics. Dealing with a lack of sleep and a lot of stress. My wife works 2 jobs and I only work my 1 job. I have told my wife she doesnt need the second job but she insists on keeping it and working 1 day a week there because the exp relates to her degree. Anyways back to me. My issue is that im not angry at her or my child but I keep lashing out in anger towards them. I don't get physical i just have a short fuse and raise my voice. I have tried the therapy route but I think the dead spots on my brain are really starting to effect my mood and my behavior. I don't drink or self medicate although im starting to look into the route of getting a doctor who understands brain trauma. I don't want to have my family leave but im to the point where I'm going to have my wife stay at her parents for a bit until I can take control of this. I do not see myself as a danger to myself or to her but I'm at the point where I do think the only way for this issue to get fixed is the day I die. I am desperately seeking advice in this matter.