one of the reasons why the value drops sharply (Ethereum in this case) is because of people like OP. Panic sell. many sold, accepting certain losses because they were afraid that it could be worse.
the biggest problem with ad hoc investors is that they enter long-term and follow the value movement in the short term. that's why sudden falls seem even more terrible.
should sold and cut off losses or would really be holding strong and have faith that the market will really make out some recovery and you would really make some profits in long term.
If you dont have trust on a particular project then you would really be having these kind of doubts which is something a very common thing or reaction for people
who had been dealing on this unpredictable crypto space.