I Need Tips With My Lux

So I main Lux if you check my Op.gg , I've been playing her a lot and I do alright with Lux CS 141.8 (4.4) 4.33:1 KDA 7.1 / 4.3 / 11.4 62% 175 Played I want to be better at her. I searched online but none gave me any tips that I didn't know. All I know so far is that I needed to work on my CS and that is mostly it. I'm very good at picking people off and starting team fights as my team wins the fight because of my high amount of damage and my good roots. Right now i'm trying to get to gold but being held down by my team a lot of the times. But I can't say i'm perfect as do I feed sometimes. Like I said before I would like some tips from any higher ranks then and Lux mains out there. [Little Clip]- https://www.youtube.com/watch?v=9z1bqq_m6k4 LUX 4 LIFE <3 [sg-lux]