Platinum ADC main LF duo

I'm pretty tryhard in ranked and recently the few people I've played with just haven't been, I'm tired of people who decide to joke around because they can't get demoted easily. I'm looking for a long term duo who is also Plat. I main ADC but my secondary role is mid. I prefer to have a support main as my duo. I have curse and I play every day and also am trying to learn a few new champions for the new season. I really want to hit Diamond next season and I'm looking for someone who is also willing to put in the time and effort. Will go into a game in 10-15 min.