DPDR feels different for everyone, your symptoms sound a lot like me when I was at my worst.
Most of these passed through lowering of anxiety and obsessive thoughts, through both therapy (CBT, ERT, and getting good knowledge on the disorder) and an antidepressant that worked really well for me.
I'm still struggling often but I'm a lot better DPDR wise, and I really resonate with the feeling that your brain is really broken and the feeling that you can NEVER see the world like you used to or the panic-like fear of your own self-consciousness. These will pass if you work on them, just don't expect to get better in one day or week or even month, acceptance is very important here.
Good luck, you can get through this.