From my experience, Not selling would be another bad idea. A good trader needs to keep rotating his funds among different promising coins.
Similar thing did happened with me. I bought a coin for $0.02 went upto $0.11, I didn't sold but now it's below $0.02 so my profit for waiting 6 months is zero.
that's right, we must continue to move actively to rotate funds to get profits., we must continue to move actively to rotate funds for profit.
it seems now you are feeling very sorry to see the state of the price of your coins,

but in my opinion if your coins are of good quality, i think you don't need to worry because the price will improve.