[docnuclear]

there's nothing you can do in this hand, you will always lose your whole stack (100 BB) when you have KK and they have AA, especially here b/c you're pretty shallow.
You should always reload to 100 BB anytime you lose a hand (I actually reload before the hand is over when I don't know if I won or lost) if you feel you have an edge and that you are properly rolled (meaning around 20 buy ins for this level, 15 if you have a good edge). Also playing with a full buy in is the mandatory to improve your skills.
Good luck