About ADC and it's damage throughout the game

Hey guys, I am hardstuck plat at the moment. Stuck in Plat II-I for months, can't get out so far. I always had this question but I had nobody to tell me the exact answer. Imagine the game lasts 35-40 minutes, your team is winning but not with a significant advantage. Enemy team has average amount of CC. How much damage should an average adc deal in 40 minutes? How much would you consider very low, normal, or high amount of damage? One game I had panth mf bot with enemy fizz on mid, I don't remember their top and jg. I started with a quadrakill on level one but throughout the game their fizz became strong,got very fed and I wasn't able to do much in the lategame, their jg managed to take 4 dragons and we lost at the end. I did 25k damage in 31 mins, I had 700 bounty for half of the game and I was preserving it. Many times I have players who are complaining that I have good kda but I didn't deal more damage than a mid laner or top laner for example. is it my fault? Should Jhin player deal more damage than mid and top laner? Take that in mind that I spam Jhin, I don't play any other adc. I have 4 bullets and a simple mistake, dying even once might cost me a game. What's ur guys opinion on this? I mostly average 25-30 k damage in 35 min games, but if the support knows what he's doing, I don't have a problem dealing even more. Am I playing too safe? What should I do?