i would like to think i'm doing something wrong.

i know people say you dont lose because of your team, you lose because you didnt carry. But the hardest part is carrying a team who falls behind 3-10 minutes into the game. and I know you can't fall behind that early, but in this elo people dont know how to recover if they die in the first few minute. they just tilt and repeatedly die 1v1 in lane and proceed to blame the jungler. As a jungle main, the most frustrating aspect is having one of your team mates die before you can even clear your first 2-3 camps. and it's worst when 2 lanes die. Nine times out of ten, my team just tilts and goes back tries to 1v1 and dies again and again. to the point where a gank is futile. the enemy is so fed he can cleanly kill us in a 2v1 fight.

what can i do to help my team if they die before 10 minute mark?

The most common example is when my top lane is 0/5 before the 10 minute mark. the enemy top laner will just roam to shut down the winning lane in our team. and since our top laner is useless the game is pretty much over at this point.