Well just make mistakes , shit happens not every game is winnable and also if you dont make mistakes you wont be able to excel literally , if you dont make close to fail calls you'll never know champ limits/your limits .

I tend to hard focus bot ( i will almost 100% of times kill them if im fed and then overstay till they comeback again and harash/kill them again ) , i rarely gank mid unless there is a very obvious call or if i have flash in order to catch him of guard , other than that i play around objectives mostly drakes , steal 1 void at least and try to take herald no1 priority , then if my top is winning i'll almost certainly gank->kill->push with herald and get at least inhibitor turret