It is extremely difficult to predict something of that nature, because if it were simple I think that most of us would already be millionaires. It is easy for some of the low capitalization altcoins to experience large pumps, but that does not mean a real "go to the moon". Perhaps the only cryptos that have "gone to the moon" and have sustained that status are bitcoin and ethereum, all others have only been temporary pumps and dumps.

In order to understand when it is more profitable to buy coins, it is enough to look at the coins that recently entered the stock exchange.  The course altcoins almost immediately fall below the cost of the ICO.  Before they start growing again, you can easily make a profitable purchase, without the risk of a  scam.

The ETH price above $ 1k is the goal I set. And I will hold them until I reach that goal. In the past few days I thought that ETH would continue to increase. and may cross the $ 1k threshold. But not, the market has gone against the prediction, today they have fallen. But I expect in the next few weeks ETH will rise again.