LUNAUSD Buy $0.20

DCA your buy in. If it doesn't fall to 18cents, at least you're part of the trade.
Buy in zones - $0.80, $0.60 and finally in the $0.20 region.
DYOR.

If price falls below 18cents be weary as it is in downwards discovery zone, which is dangerous.

A lot more analysis goes into trading, but this is just a quick overview.