there is three possible scenarios :
-first one it fall until it reach the major first support and rebound on it to retest the high of the megaphone (70% probability)
-second one it fall and break the major support (last ATH)and keep falling until reaching the down trendline of the megaphone (20% probability)
-third one it breaks up the megaphone and keep rising until reaching an undetermined level (10% probability)
make your bet. personally ill wait until it reach the major support and see the price reaction before taking the decision to short or to buy