For those who buy altcoins when the price is cheap or last January, then selling now can get a profit of at least 40%, but I buy when the price is high, starting in 2018 so I'm still holding.
The altcoin price is currently entering the bull market, it is better to hold coins owned and sold later when prices rise higher, predictions in December prices will be even higher. Even if you still have capital, buy more prospective coins such as Ethereum, BNB or Dash, and wait until the end of the year.
Why do I suggest buying an altcoin because in a few days there has been a significant increase, of course the price in the future will be higher. For Ethereum in December, I estimate the price will reach US $ 400 to US $ 500.