Hi mate! You have south, thats 180 degrees (if north is at 360..duhh).
East is 90 degrees. SouthEast (or SE) is 180 degrees minus 45 degrees, thats 135 degrees. SSE is 135 + 22.5 degrees, that would be 157,5 degrees. You also have ESE (East south East), thats 135 - 22,5 = 112.5 degrees.