if you're 5-0 fucking do something

Don't keep farming, take your tower , group mid and take both towers, Ward enemy jungle , counter jungle , split 4 top 1 bot, UPGRADE TRINKETS,. Example I'm trying to main Lee sin jungle Do Krug Enemy squishy? If yes invade their blue If not, do red Gank mid blow flash Back Do blue Can you Gank top? If not do croagunk, then wolves Counter jungle Got kills??? THIS IS THE IMPORTANT PART If you somehow ended up 1-04,2-0-2, or anything similar Camp bot!!!! Early levels it's really important If you can't get a kill just help them take tower Then ask top to tp for drag Everyone back Then go 4 mid! Take mid tower If you can take another mid tower This is the second most important part Once you have taken down both mids and at least 1 bot tower, keep enemy jungle warded Take drags as soon as you can and have small skurmishes, never chase! You have a strong lead, why throw it?? If you keep focusing on towers it's gg Team death match time? Expect to lose.

You don't even have to be jungle to do this. Be the shot caller! Tell your jungles and top when to help you take towers and ask to group mid.
Hope this helps (mostly talking to the vi who cost us game because she got a lead and thought it was team death match after that )