PSA: If you're behind, STOP trying to fight your laner.
It really isn't a difficult premiss, but I see it WAY too often. In my most recent ranked game I had this Riven begging to play top, so I obliged because I'm a nice guy. He does what all Riven's try to do, and do some early cheese, but gives up first blood. Looked top and it was a close fight so I didn't think too much of it. However he get's back to lane and not a minute later dies again. This proceeds for a total of 10 times in lane. Didn't matter she was 3 levels behind the Irelia, just kept on trying.
If not for me peeling the hell our of our carries, who were somewhat competent, with Voli, that game was a loss without a doubt. What's worse is not only is she feeding, she's also trash talking her laner. As much as I hate toxic/trash talking individuals, at least back it up if you're going to act that way. Playing safe and farming up is something I learned when I got out of bronze, if you're Gold, I'd expect at least something as basic as that, and not going 3-13.
TLDR: If you're behind, stop trying to fight and putting your team at an even bigger disadvantage when you inevitably die.

Singed health is so low guys! I can get him I know it!
or
I always get first blood, and dominate my lane, and I don't let the enemy farm and have killed them without them fighting. Can't just say they always fight, minion wave stops saving your ass after you gain some levels.
can go a LONG way when you're behind in lane.