It sounds like you are doing really hard work. It's OK that only a few tears came out. The rest will be waiting there to be released when you are ready. Maybe it will be in EMDR and maybe it won't. Maybe it will be in therapy and maybe it will be at home in the privacy of your bedroom with your lights out. There is no right or wrong.

I think the ego state work sounds like a really promising direction. That shadow state sounds very important to know about and work with. Sounds like very important work! My T often combined ego state work with EMDR and this worked well for me. Good luck. Keep going. It's OK to do things in your own unique way.