Sorry to hear what you are going through. I have had anhedonia too. I would just stare out the window and not care about anything. Didn't want to eat, couldn't think, nothing seemed to matter. I just wanted to sleep so I wouldn't be conscious to my inability to enjoy or care about anything. Currently I'm too anxious and worrying about the next thing I need to or am going to do to enjoy the present moment. It's torture. Again, I wish I could just be asleep all the time so I wasn't worrying.
Sounds like your meds aren't helping you. Mine are helping me make it through each day, but it's no fun. You seem like you're barely even there at all. You can't be totally out of options. I've been on a ton too and I've thought that before in the past, but there's always something new coming out and different classes that have a secondary use that might be beneficial to your situation.
I feel for you. Don't give up.