Little Rant Need Help

Diamond 2. So i started playing 2 months ago since 2016. I’ve developed a winning mindset meaning i try to blame myself instead of my teammates for conceding goals. I want to reach SSL in the long long run, but man I don’t know last night I almost lost my shit because I swear I do my best every game to make sure my teammate isn’t left in 2v1s, making sure I’m using my boost correctly, rotating properly, the small game sense stuff. But my teammates are own goaling, ramming the ball against the side wall midfield, missing saves against slow goals in the net, centering thr ball for the opponent unintentionally. This rank just seems like a never ending nightmare and I think I need some more mental tips because god damn I’m at the end of my line.