I see Vulcan Forged on your investment list where this token has lost over 90% from its last ATH. Many coins can come back or make it to the latest ATH but many more end up being worthless at all, and PYR will most likely not touch its last ATH.
This is a valuable lesson that many projects are only good at the beginning with all the promises but don't have the ability to survive, if you don't have a problem with losses then you can sell it now as long as this coin still has value because this coin might not go anywhere but die slowly and make you get nothing, but the decision must come from yourself and consider many things.