SoloQ Anxiety?

I've gone from Gold 4 to Plat 5, currently in promos. It's like a whole new game, at least that's what it feels like to me. People seem to be a lot better and OBJECTIVES have been a really high priority. I feel like I'm not getting better mechanic wise/knowing when I can fight(sometimes). It's just giving me a little anxiety when playing in SoloQ because I don't want to feed and make the game worse for my team.

Any thoughts?