The developers left the ship, did not you notice?
Is Bytecoin dead? Not yet, but it is on a life support machine waiting for someone to pull the plug and declare it officially dead.
Bytecoin simply has no reason to exist. It is a privacy coin with no innovation, dissipated community, ... there are much better options to use for the privacy concerned users.
It’s time for a new fork. This is the best thing that can happen.
Sorry for your loss. Do you need to sell your bag? I do not know. I will not sell. Maybe it wakes up from a coma. Decide for yourself. Sell it if you can and take it as a valuable lesson for the future investing decision.