What to do in this situation ??

I generally play Jungler, even after constantly ganking and providing them kills making them ahead of their enemy teams, they still loose most of the lanes ?

In that case what as a jungle can I do ? I got my bot lane ahead by 3 kills, but they still lose the bot lane ?

Mid laner preferring to roam top, when i am ganking bot and the enemy mid laner taking a huge dump on his lane taking out towers after towers.

Top laner even after early 2 kill and quite a few gank assist still loosing top lane hard, for some reason.

Support refuses to ward sweep or just simple buy a few more wards ? Says the sightstone is expensive and is uselss on a melee tank support like braum.

I dont usually play support, but i don't think so that should be the case. I have seen good supports deep warding in my jungle. Dosen't make sense to me.

What the fck to do in this situation ? and the blame falls on me for not ganking mid enough ?

Am i supposed to win the lane for them too ? I have watched lots of jungling videos. They provide ganks / vision but I have not seen them constantly camping and ganking the lanes. In videos it looks pretty easy, i dont know why, Maybe because at high elo people know how to take care of their lane ?

Or is it just they upload videos of only victories and good matches. Can't wrap my head around it.

I have seen Redmercy uploading videos of his losses as well.

Please let me know, what to do in case all your lanes are loosing hard.

Lots of questions, Please help me out.