Final Year PhD RL robotic control

Hi all, I don’t know what exactly I’m looking for by posting here but here goes. I’m a final year phd student and my work is in RL based robotic control (broad area, I work on a specific application). Honestly Idk why I picked this topic. Neither my supervisory team nor I had any prior experience. In the start because of my lack of experience my topic seemed doable, then in the middle it seemed like it would never work, I tried to pivot many times but was discouraged by supervisory team. Got paper rejected twice for methodological flaws. It’s only now I’m starting to vaguely understand whats going on. And still my model does not work on out of distribution states. Not to mention I am no where near competing with state of the art. I just don’t know what to do. I’ve invested so many years in it to just let it go but I have no idea how to save my sinking ship.