It would be good for you to know the feeling of drawing the bow to full draw, exclusive of where your present anchor might be, and then establish an anchor that works for you at full draw.
As you draw the bow, you should be contracting your back muscles, such that your string-side shoulder blade moves toward your backbone. This results in your string elbow moving more in an arc than straight back. When your shoulder blade has moved toward your backbone as much as it can, your drawing forearm should line up with the arrow, viewed from above. You should be in the allignment shown in Terry's form clock, which is illustrated in a permanent post at the top of this forum.
When you are in this position, you may find that your current anchor works, or you many need to find a new anchor point.