The trend has been slightly decreasing and just broke the downtrend line.
1. At this point, wait for an open-close candle then sell it.
2. It might continue to decrease through the support line. if it pulls the lines back, wait for an open-close candle then sell it.
3. It might start to increase. If it breaks the uptrend line above, you can buy some or more.
4. Buy at the support line, sell at the resistance line.