Bot-don't shove your lane, mid-shove your lane and roam top, jungler, focus on mid and bot.
Top, don't ask the Jungler to help unless he happens to be in your neighborhood. There is one, rare scenario where you can ask the Jungler-bot lane's enemy adc and support is dead, and the enemy jungler/mid lane are dead, one or the other. Ask mid instead, it's mid's job to shove and roam, and the jungler should be covering mid and bot, which leaves top.
As a jungler I almost never go top because even if bot lane is doing well, they are going to get cocky, and start shoving the lane, and then the jungler is going to show up if he has a brain, and bot lane will most likely throw their advantage.
Support: For the LOVE OF ALL THAT IS HOLY, PLEASE BUY A MOTHERFUCKING SIGHTSTONE. Supports that kill or supports that heal or supports that shield, its all good, it's all going to help, but jesus h christ. you have to buy a sightstone in the first 30 minutes of the game.