Looking to improve my game Shaco and Lux main

Hey I am silver 4 atm (in promos to silver 3) finding myself a bit stuck and not sure where I can improve my game

So would anyone higher ranked be willing to have a few games with me and tell me where I can improve? Or look at some of my replays? Or something to help me. I want to stick with shaco as my main.

I do have a positive win ratio and positive KDA but I'm not sure how to for example die less and still get the job done when on shaco or on lux how to win even though I'm like 4.8 KDA on her and almost no deaths =\

Any advice would be good but pre warning I am the type who doesn't understand things unless I can "argue" it.. example if you tell me "well you need more CS" I might be like "but I get enough gold from kills" and you can be but you need more CS because... and I'll be like "oh okay that makes sense but what about"... and ya thats how I learn so if that will annoy you please just don't worry about it and thanks for dropping by!

Anyways thanks for reading add me in game or message me in here if you want

Summoner name: MrEnder