Well cryptocurrency as I understand will need a lot of your time and dedication before you become a full expert in it, what I have observed about cryptocurrency ever since I got into the crypto space is that cryptocurrency is extremely volatile and the chance of the market turning completely the other way around from what you expected is very high, that is why if you are a trader greed should be one of the things you should always try to do away with because it can destroy your chances of making money as a crypto trader, and on the other hand if you are an investor you really have to make appropriate arrangements and be discipline with your arrangements whether to invest for long-term purposes or for short-term purposes , from there you can have better understanding of when to sell out your cryptocurrency and when not to, if you are a long-term investor then whatever news that is happening in the crypto space shouldn't be your business and you should not try to sell out your cryptocurrency at lost no matter the level of depreciation, Then the most important thing is that you should deal with good potential cryptocurrency to avoid regret.