It really depends on your expectation for the coin, if you think it will come good in the long term then of course hold it, if you think it will never improve then get rid of it and try again.
Yes, Is the project behind the coin a good project? Is the team communicating and answering to people arguing about the price? If so, hold: everything in crypto is cyclic and we hopefully will see a new ALT season soon.
If the project is a scam, I would try to exit and limit losses.