This is a critical level (the 20's, 50's and 80's on S&P), if this not a triangle, then it will fall to 2150 or below, be careful with your money, do not lose them on S&P
-divide your normal lot size on many orders (add later)
-total orders SL to be calculated at least at breakeven
-never risk more than 2% of your account on any of the indices, they are full of traps, there are so many other markets and setups safer than those.
Good luck