Any tips, i play well in regulars, but i just cant play adc in ranked well.

its pretty much the sames as normal games. you last hit and watch where u are in team fights you should be ok. whats probly happening is you are being matched with people who are better then who u face in normal games so that might be a factor as to why you are not doing as well.

if u keep it up and keep learning from your mistakes you should start seeing yourself get better.

Thanks, I actually did good in a ranked thanks for the tips

learn your champ. A champion like tristana or Varus use their abilities a lot, whereas a champ like ashe kinda just likes to shoot the bad guys.

Bring a duo partner with you, especially if you're playing in a shared lane. The thing is (in low elo, like meee ) People hate to support. People just don't like to do it. If you have a duo partner you have someone you can trust, which makes the game a lot easier. If you get someone who doesn't want to be in lane with you, it makes the lane a lot harder to play.

Also take some time to learn lane match ups.

freeze lane if you expect ganks, by just last hitting not pushing the lane.

if your lane is well warded, then feel free to push hard, and possibly roam to take dragon.

pushing mid with your team works best if you have the outside lanes pushed, don't just cluster mid with your team with out pushing those sides.

same thing with baron, good times are when the lanes are pushed and the enemies need to go defend.

you as ad carry can buy wards too, it helps, your support won't always be with you.

infinity edge is the best damage increasing ad carry item, rushing it gives you the damage you can expect from a ranged ad carry, of course get a dorians or 3 of you have the odd amount of coins.

if your support is soraka, there is no need to rush blood thirster.
if your support is nunu maxing his blood boil buff first, there is no need for you to rush a phantom dancer. that's like you rushing 2 phantom dancers which is never done competitively, a phantom dancer(nunu's buff) with your infinity edge is nicer.

always be getting cs if you have no where to go, go in jungle and get more cs their.

make sure you push down turrets at opportune times.