identify matchup and promise do not fight in lane before u get lvl 3

Your chance of winning increasing based on the decision u make in this time period.
It is because you are maxing your W ability at this moment, you need to constantly looking for fight once both your summoner spell are up.

GUIDELINE : -
Against normal type support(e.g lulu, sona, pyke, rakan and etc.)
-enemy stronger in extended trade
-call your adc don't push the lane
-once you push, you are giving enemy jungle easy gank setup
-even if enemy jungle do not gank, you will fail to win extended trade or disengage

Against other type support (e.g blitzcrank, swain, senna, nautilus, pantheon
lux, etc.
-try to build up minion advantage
-this way enemy cannot win trade you
-if enemy insist fighting most likely enemy lose cs
-call jungle for diving enemy will still have a high chance to fail even you have minion advantage
-but can call jungle for short cover if waves is pushing
-should control vision in lane with red trinket

At this time period, your game winning rate start falling as you are less control to the game.
Try to help other teammate(other than adc) to build up advantage to win again.

The decision you make PRE-6 is crucial, this type of support is strong in setting lane kill to snowball
NOT roaming and leaving your adc alone in botlane.

When your adc is picking:
Kalista
Varus
Vayne
Caitlyn
Akshan
Quinn