You can carry yourself out of low elo.
I'm living proof. Last season, I was placed Bronze 3. It took me over 800 games to get Silver 3. I stopped and realized, hey, you know what? I clearly suck. I just played norms, practiced last hitting, played roles I normally wouldn't to have a more well rounded understanding of the game, and I was extremely critical of myself in game. I stopped using chat almost all together.
Tonight, I achieved my promos to S2 in under 200 games. That's a higher division than last season is less than 1/4 the games.
Are you stuck in elo hell? You need to take the first step, just as I had to. And it's a hard step to take. Look in the mirror, look yourself dead in the face, and tell yourself this one thing: "Maybe I just suck fat dong at this game." Now you can start improving.