Depends on the champion, if you are jinx I would just grab long bow(after IE) and and try to take a turret then run when the enemies come to lane to stop you. Purpose is to essentially make them all deal with you while your team (hopefully) takes objectives or flanks them. You can also try to either steal objectives with your R or clean up a fight with it(used it plenty of times to save a toplane losing a 1v1) since people in bronze tend to stand still and just wail of eachother alot of times. Also can be used to kill all the minions on your turret if a champ is there trying to stealth take it,scares them into thinking the team is nearby and back off. The CD on it is not bad and people tend to underestimate how many things you can do with it.
Outside of that there isn't much you can do ADC if your team is not ahead since bronze players are not always the best at peeling(neither is silver actually).
Personally i say either get a support duo who can cc or just playing mid until you get out of bronze then go back to adc once you hit silver.
edit: Also a mistake I see alot of people make. If the enemy team is coming for your turret/ dive and they gonna flank you. Don't run from turret, Kill all the minions so they immediately take turret damage. If they don't have a tank then they will either back off and if they don't then attack the one being hit by turret so you atleast take one(or more) with you. Too many people just run out of turret range and get killed,give up turret, and get no kill of their own. Don't know how well this works in plat+ but I usually either live or go 1 for 1 1 for 2 and even 1 for 3 doing this.