Your arrows are too stiff. Your bow is 30 pounds at (I am presupposing that the 72" is the length) 28" of draw, and you are drawing 27.5". The bow does not appear to me to be cut to center, so i think you should be shooting arrows spined 25 to 30pounds, cut to 28 or 28.5". A 1716 aluminum would likely serve you well, too. The difference in spine between your bow and your arrows is too great to be made up in mere additional point weight, in my estimation. There are those here who may differ.
Don't get rid of your arrows, as you progress you may go up in draw weight and they would then stand you in good stead. "Youth" arrows may be an alternative, or find a sponsor who makes arrows in your desired weight.
Killdeer