I have not seen a trader that do not lose sometimes, i may be new to the forum but been learning before now. it has nothing to do with sentiments but traders have to learn to accept trades the way it is, without attributing loss to any factors; as it leads to more rekts.
Always accept the market as it is without blaming any factors.
Always dyor too
No matter what some people will keep holding, even I have found myself in similar situations many time where the hopes remain high and one just tries to absorb the stress of loss but at the same time hopes the price will recover sooner or later, this do work sometime but mostly I have seen that new coins are not guaranteed to recover fully.