Lol, fear not! I got ya!
Okay simply remove the motherboard from the case!
Put it on a table or bed, make sure you got the CPU in it!
Get the cooler and the AMD brackets out! Listed in the manual.
(hard surface may be best..)
put the plate on the back of the motherboard and put the 4 arm metal thing in the center of the hyper 212 Evo cooler adjust the arms by pulling them to the correct width of the screw hole bracket back plate. screw in done.
(lol, don't forget the thermal past I recommend doing this after you practice seating the cooler on the cpu 2 or 3 times..)