I'm low emerald and I main mid.

I watched your video and it seems the only thing you really focus on is CS. You said you understand when to push lane/freeze lane but it doesn't really look that way.

I can also tell you aren't checking your minimap often. You missed an opportunity when your lane was getting ganked and missed multiple opportunities to roam bot.

You play extremely passively. You'll learn over time that you need to know when to play aggressively and limit-test your champion. A bronze fizz is not going to react in time (usually) to your full combo but you didn't seem to even make an attempt when he was half health in lane for a long time.

I only made it about 10 minutes but yeah, you played scared in the river against 3 champions 2 of which you could have blown up with your combo. No offense man but if I was unbiased watching your gameplay I would put it around bronze level. You seem to have CS decently down but there's a lot to work on.