Can someone help me to get better?

Hi. I'm silver 4 got demoted recently. I don't feel like I'm getting better. Can someone play together and tell me what I'm doing wrong, give me some tips? Thanks. I get blamed a lot, even I don't feed. I only jungle as ww/vi/shy. Because I suck at farming I also don't like pressure of laning where you can fall behind because you face better player.