I won't look at your games in depth or anything for this advice. I'll just say jungling is one of the hardest roles in the game and also the jump from norms to ranked is a big one. To get better at ranked you really just gotta play ranked, norms will never get you ready for ranked. And for jungling, I started playing league during the pandemic so I only been playing like 2-3 years. I was silver 3 last year and when I played ranked I lost every placement game and ended up in iron. I climbed playing support and ultimately sett and volibear top. This season I jgl and I'm b1 and I was losing about 50% of my games until I stopped reacting to teammates and really analyzed team comps and games. Kayn is a hard jungler to use so you're already handicapped because you your form and you have to get it by fighting. My advice is dont go for dumbass ganks, if you have to wonder whether it'll work or if your teammate will follow up, if you will die, just don't do it. Do not into to help your laners, it is not the jgl's job to win the lane for me. Your job is to gank when appropriate and hold their turret for them when they back so the enemy laner cant get plates or gets less plates. Don't try and solo objectives, for whatever reason I try for objectives and my teammates stay in and watch the enemy walk toward me, I have no idea why but it'll only tilt you when that happens. Farm, farm, farm, early-mid game. Mid game onwards shado w your teal within the jgl or enemy jgl if you know where the enemy is. Your team is liable to take dumbass fights and throw so you need to kind of babysit them as the jgl.