I'm sorry but you can't do anything about it now. If there will be no exchange for your token, and as what other people have said that the project was already abandoned, then there's nothing else you can do but to keep it in your wallet.
Yes, and actually this should not be discussed too deeply, because I'm sure everyone has also experienced something like this even if only once, this is more to the risk when someone is not doing research on a project that he likes at the time.