I waited for several months, following coinmarketcap. I enjoyed watching all developments, and learned that the markets where actually quite predictable. A coin that rose with 1000% was likely to drop far more in just a few days.
So you have made a lot of money when it was predictable. Why do you complain? (no, no market is predictable!)
I never really liked the fact that half of the bitcoins are owned by 100 people. In this way bitcoin is not much different then "real" money, where half of the global money is owned by 100 people.
This just unknown and likely not true. Addresses with big amounts might be a cold storage and belong to many individuals. On the other hand any individual can hold many addresses. And that half of global money (you mean a tiny percetage of all assets and wealth?) is gold by 100 individuals should be false, too.
In stocks I have a few simple rules:
- if a stock drops 10% consider to sell
- if a stock drops 20% consider to sell or have good arguments why not
- if a stock doesn't give you any profit for 3 months it is unlikely it will give you profit over the course of the year, so consider to sell
Or you make the rule, that you buy, when a stock drops by 20% because it likely drops not further.
You just have to evaluate based on your investment horizont (longterm-shortterm) and informations where you invest your money. Are you risk avers? Can you affort to take a high risk? So you have other investments which will maybe with a 20% 10fold?
In my opinion the expected value of one Bitcoin is well above the given price. Something like: 50% it will go down to 10$ and Zero. To 50% it will 10fold. So this is green to hold/buy. I might be wrong but I take the chance!