If you can figure out why we topped on Jan 8th, you will also figure out why this temporary support came in here. I am literally spoon feeding you right now.
When price falls through a level (gray levels on chart) the best action is to place a short at the level if fell from - taking a long to resist/supply/sell orders is a huge risk. I hope this helps and not muddy the water further
Your short is a scalp against the bigger test which is going on here. Today is a test of Monday's lows.