I'm sorry to hear you are going through this. I can relate to the part of feeling like everything is spinning and sometimes I felt like I am floating through life-numb to it and everything around me. One thing that helps me, that I started when I started therapy, is journaling. I'll just pick up my journal and write....even if what I am writing doesn't make sense (usually I'm all over the place and the sentences don't even go together when I read them at a later date.) But it helps get my mind focused and get all those feelings in one direction.
Have you thought of writing a letter to your Uncle? You could write in your journal about your saddness, etc or whatever you wanted to tell him.
Hope this helps you in some way.