To me, the main reason why newbies loss in bitcoin, is that so many of them think that btc or crypto is a get rich instantly thing maybe teaching from their teacher or facilitator, but it isn't. It is a thing of patient and market endurance.
Another thing is greed.
That's the first point that i have mentioned in my post that bitcoin is not make you rich quick scheme and you need to be patient enough and hold your coins in dips also but people do something opposite to it and sell at loss or find some other coins better and that take them to loss so we can't protect them so it's better to leave them on their.
Most of those newcomers who didn't do their homework losses their money with this kind of trend,
The market always different sways, if you don't know how to deal with it expect that the first thing that you will do is to keep yourself
working with the current situation, deeper knowledge is what you need many times from the past proves that this market fall always have
good bounce and recovery at the end. Position yourself and be patience to wait.