all good general advice that i would give to adcs in each elo, maybe you should work on something from a lower or high rating OR maybe you already do stuff from lower/higher rating. I don't know you just covering all the bases from basics to experienced. maybe think of it like a checklist anyways:
Iron: focus on csing at all stages of the game don't just stop after laning. The more gold you have the bigger impact.
Bronze: look for good SHORT trades when they have spells down and you have spells up. Poke goes a long way
Silver: focus on dragon vision and blueside: deeper vision(in-between blue and grump) when you shove up or redside: tri-bush/grump bush/red/behind red on other side and react and survive ganks. warding jungler camps is one of the best ways to avoid dying to ganks because you get to see them coming a long way off and give vital information to the rest of the map.
Gold: learn when to push or freeze and freezing in general. Sometimes it's very safe to freeze waves in front of your tower so you are more protected from most ganks. If they didn't shove in all the way and go back you don't need to necessarily shove back enemy minions can kill a surprising amount of your minions as they shove in. But of course if the enemy lane is somewhere else you need to push in and get some plating.
also you want to be vertically laning meaning you and supp are on the same side of the lane as their adc/supp. aka both adcs closer to river both supps closer to wall or both adcs closer to wall side and supp near river. just keep switching sides to get vertail because many supports will switch sides to get crossed lane so they can harras you. (maybe cross is preferable against certain poke adc champions with non aggressive supports)
Plat: watch your own minion as well as their wave and when one of your minions is dying you can move up to harras when they commit to csing that minion.
General advice: it's okay to stay back in team fights and wait for their diver to engage on someone who is NOT you. Staying alive and doing nothing is preferable over dying and doing nothing. And divers are RARELY smart enough to not go in because you are playing safe.
If you see the enemy jungler somewhere on your mini map it's okay to push in and get some plating.
sorry if this is a lot to take in all at once you should make a list and try to constantly do a couple of these things every game until theu become second nature to you. goodluck in ranked.