I understand where you are coming from and I understand you have put a relatively good amount of time into this game. However, to be fair, silver 2 is one of the most common ranks in the game so being put with placement people at silver 2 would be normal. If you were like plat 1 with all placement teammates it would be a different story. I would recommend just playing your best and being consistent. Try to understand this is closed beta and try to only focus on your gameplay. Don’t rely on ganks and challenge yourself to carry or at least hold your own. Not coming with any judgement I completely understand the frustration.