1) getting sniped
2) getting ganked
3) getting killed with a shotgun
1) avoid taking engagements in open areas where you're at the mercy of a sniper
2) pay attention to your minimap
3) avoid taking engagements when you're not at full health and or outgunned/try to bait favorable engagements, and pay close attention to sounds/foot steps so you can't be ambushed.
This will mitigate the problem, we all get unlucky from time 2 time, but if you follow these rules religiously, you should always be winning 1on1 fights and keeping above a 2-1 or higher k/d ratio.
For me, its not about shytTY team mates, just stupid ones. Don't play characters the team doesn't need. If we're in league and someone called mid, don't boneheadly go mid too just cause you're determined to play the lane you wanna play, you're just gunna cause the team to lose. If you're a healer, you should be healing not trying to get kills. If you're a tank, dont play like a bytch on the backlines. You get the idea.
Oh and imbalance in rts games, for me its protoss in starcraft 2. like come on WHEN are you guys gunna nerf this stupid fukking a-move race????!?!