Losing in Ranked, Please share me your knowledge

So, back in season 3 and 4, I used to flame people for being bad. I know this was bad now but at the time I felt like I had a right to call people on playing dumb or not the best. Season 5 I stopped. I improved by supporting people who weren't playing there best and I know it can be hard sometimes.

I finished Plat V season 5. Season 6 - I'm Gold III atm

Season 6 -

• I've tried what I've previously done in season 5
• I've tried not saying anything
• Yes, I've STARTED to go back to flaming. But not much (Just telling people they should've done this instead of this).
• I've started telling people what they should be doing because I'm starting to feel like they don't know what they're doing.

What I'm doing now. Stop rank Improve the way I interact with teamates to make them feel good that they did things the right way or a good way.

My real question is. When I play ranked. my teams usually not good (I'd say 1/5 games my team is good) It does start to tilt me and I don't know what to do anymore if I only get one good team per 5 games. I need people to help me out here and tell me what I should be doing to improve my ranked play and my team luck? if that's a thing.