Ranked

Why is it ok that ive been in bronze1 => silver promos 6 times, and on the 7th, i go 2-2, and get a game like this. Id think after the 6th time of me entering the promos I should be ready to go up, but this is just obnoxious, how do you win a game like this? Morgana was sick of ezreal feeding so she decided to support the toplaner. The toplaner was significantly better than me so i laneswapped so he didnt get his exp sapped. Ezreal solo laned due to the morgana going top and got curbstompped because he was already feeding. The riven almost carried it but ezreal fed his brains out and riven got too nerfed due to the lost exp from morg matchhistory.na.leaguleague eoflegends.com/en/#match-details/NA1/1784911729/217444294?tab=overview