Time to short usdcad after long impulse exhaustion

I publish this graphics some months ago, predicting the +500 pips rush after the triangle break.

Now in this episode the price is exhausted and is crashing to a good long term resistance.

Strong enough to stop the price and reverse.

Now in a 4h we have a good short gap after 1.10 touch. So is a good representation of the sellers.

Time to go short :) at least 250 pips (50%) but im not full sure about if we can go more or less.

Need more ideas :P