Being aware that BTC can go down to 1-2k$ is ok but your post makes no sense, if a D is a low how the E can be a low too ? I guess it's your C then, and if you look at the chart you do not really have any triangle, just an expanding diagonal that can be relabeled as any wxy correction, these correction are really hard to predict and their end is known only after a clear uptrend has unfold. A huge ABC or 335 where whe are in the B or in the second 3 up is more likely if you want to be bearish.
A bottom has not to be tested multiple times, a bottom that is tested multiple times is a support, a bottom that is not is usually a bull wick (in a bull market). The 5-6k$ support as been tested 2 times, first in octobre (after being a resistance few weeks before, even more than one time because of consolidation) and this year in february.