I really hope you find a solution, at least momentarily. I can relate to your feelings somehow, as for the last years I have been feeling trapped, and going in and out of that feeling. Going through the worst period of "trappedness", dark clouds cover it all. When I communicated this feeling to others, in general, they jumped to enumerating solutions, and I feel that that was not useful for me. But, on the other hand, I admit, I was not easy to help, either. Partially I see there was too much on my plate and that I have been struggling with different difficulties all my life. Sometimes, we have to stop. Sometimes, a situation out of our control make us to stop and get out of the darkness. So far, I am going in and out.
But, unlike you, I cannot see a kind of "individual destiny". To me that thing about "one should be happy", or "one should not be happy" does not exist. We are just thrown here. We are thrown into existence amidst things and with others. We all will die. In this order of things, we all are equal, we all have the same destiny at the end of the day. In this regard, our destiny can't be changed but, it can be challenged, as Heidegger said