After getting all 3 of my alternate accounts to gold I have decided
There has NEVER been a harder season to climb solo. On my solo lane accounts, it almost doesn't matter how well I do in lane or even in laneswhen I scale and just don't feed. There is so much gold and damage being thrown around that the game snowballs out of absolute control if I can't be in every lane at once. There was a time when you could play your favorite champion (mine was pre-rework Zac) and you could climb through smart safe and timely play. Now it's just spam TDM and snowball to inhib at 18 minutes
Of my alternate accounts the jungle account was the easiest to climb with, mid 2nd, and top was the hardest (mainly because it was Nasus only)
TLDR; you can still climb, but it is hard if you aren't playing the right champions