I don't feel bad at all about my rank this season.
I'm sitting at the same position this season as I was at the end of last season. No change, and I don't feel bad at all about it. Given that the majority of players looking to rank up this season are getting boosted by Plat + players and I'm playing usually solo or queued with silver/bronze players, I'm actually kinda of happy with my own performance. I really hope they fix this next season so players can't boost so easily. It'll always be there with duo-queuing though.
A system of SOLO / Dynamic would work best for me IMO. Not duo. Pure solo queue or dynamic queue. That way we can still play with friends but not to stomp solo queue players.
TLDR: Let solo's play solos, and duo+ stomp each other.