Low S18 win rate

Anyone else having a super tough time this season? I think I’ve had just 1-2 close games so far. Otherwise they’re just no contest stomps. I had a 65% win rate last season and almost touched GM, now sitting at 35% and dropped to high diamond. I mainly play support and have been mid-masters since the season 6 hard rank reset.

On the flip side, I hit masters easily with tank this season when I’ve been hard stuck low diamond for multiple seasons.

Just trying to wrap my head around it if I’m doing something wrong or if the season just needs time for everyone to settle to their correct ranks.