(((time0))) yes, it is too much ... so don't think about all of it at once... please. You are right that you are overwhelmed. I can understand your sadness about the losses in your life. Can you try and honor those thoughts by giving them specific amounts of time that you WILL think about them, and then not...for a while?
Escape is a coping mechanism. Shutting down is a coping mechanism. You are coping the best way you know how... take care of yourself... be gentle.. go slowly... don't pile on with things that happened before while you are struggling with things that are happening right now ok?

don't worry about all of us here... you'll give support when you are again able