Avoid using your abilities on minions.
If your combo is on cool down then you are definitely going to die in a fight.
Ward entry points for ganks. Place a red ward in the brush behind your turret because it is less likely to be destroyed there and will provide you near constant vision against possible dives.
Eye the map. If you have no idea where an enemy is then assume that they are coming for you.
Clear minions whenever alone in lane against an enemy before attempting to fight. Otherwise, you will die to minion aggro and grant your enemy a kill.
If your summoner spells are on cooldown then do not extend past the river without vision or help.
If you want ganks then allow your enemy to push you to turret. As a jungle myself, I am always checking lanes to see if an enemy has overextended.
If you are behind in lane and find yourself dying under turret then endure it and advise your jungle to help other lanes instead. Because this is a situation in which you've lost lane and your jungle is better off getting another ally fed to compensate.