bitcoin is not safe to trade at all

according to its last defeated try to break its triangle (flag) Bitcoin is pointing lower targets, even more than last week.
i personal think to see this crypto king in lower levels in touch of its short-term sharp uptrend line (around27000- 29000usd) and even in 18000-20000usd to retest its long-term normal uptrend line.
i do not sell it,because its overall trend is still uptrend.