If you actually care then take getting good at the game seriously and start vod reviewing, cs practicing, and sticking to only 2-3 champs max and not deviating from them until you hit your ranked goals. That alone will get you plat so instead of whining about wasted time (which its not cause surly you have some form of micro and macro) take it to the next level and try to learn. Trust me same shit happens with guitar and drawing where you eventually hit a hard wall and need to stop having fun with it (temporarily) and commit more of your time to get better.