Beside evry thing about the tactics and bok reading i have a thing i try to do before logging into a gaim.
i check my stay off note that i have put on the computer and check if i´m any of the following if yes i try not to play
am I
S ad
T iered
A ngry
Y ield

O bsessive
F ear
f ull

(this sounds stupid but it has helped me a lot to not play when not on top)