you never lose until you sell remember it. you have invested while its bear year so probably you will lose something if you sell during this period. just hold it until good times.
Of course, if someone bought Ethereum at the end of 2017 or at the beginning of 218, as well as about May 2018, then today their investments practically bleed the hope of good returns. But one should not be discouraged in this regard. Since the ethereum has very good prospects and, after scaling, the block is a chain, in any case, the investments will fill the capitalization with ethereum and this will affect pricing.