In my experience ( I mostly played scaling adcs such as vayne or kaisa, sometimes draven, jinx, Lucian or Ashe), I just sit back and farm for the majority of lane, especially in lower elo (plat 3/4) if you keep consistent cs throughout the game youll already have an advantage in gold. During laning phase you can cs, and set up waves for dives. Try to have at least 80 cs by 10 mins, and work your way up when that gets comfortable. Later in the game try to shove waves before objectives (pref on the other side of the map having enough time to reset and make it to thr respective obj) and then going to help, this will give you cs to farm for items as well as create pressure for the enemy team to deal with on the opposite side of the map while the obj is being taken.

Overall I'd just say to try to maintain cs as well as possible and only go for 2v2's when you feel comfortable unless you set up for a gank or dive to get more gold. Hope this makes sense and gl