Finnaly achieving a positive K/D ratio, next step?
So I'm in Bronze V, usually solo que and I'm working on trying to improve my game to get out. I am to the point where I am finally getting a consitant positive K/D ratio each game, and I have an acceptable amount of assists. I also tend to get fed early on, but I'm not sure of where to go from here. I feel like all the advantage we gain by me being fed, slowly begins to taper off because I'm getting all of the kills and my team doesn't seem to get them, it tends to make me strong and feel like a powerhouse, but we still lose more often than win. I'm still working on my last hitting, while trading to trade/poke. I tend to be able to make it through the first 15 minutes or so of the game with one - no deaths, and my deaths tend to accrue when I start pretending I can tank the enemy team as some sort of carry.
I'm playing better than I used to for sure, but how can I take advantage of this positive K/D ratio to advance my team further, and not just watch as I become a god, and they lag behind until I am knocked from my pedastool. (I'm exaggerating here).
What should I be thinking about in order to progress the team, and not just my kill count. I sometimes end games with 20/7/13 type K/D ratios, especially with AD carrys. What are the next steps? Thanks