You aren't even level 30 yet, you haven't finished learning the game. Looking up guides, or just watching some people play can help. It takes a long time to become "good" at the game and that means something different to everyone.
Right now you are one of the kids playing soccer in the summer cuz their mom signed them up. If you keep playing and getting better you can get to the point where you aren't terrible (that's like Silver) and if you keep working at it you can be the best out of your friends (that's like plat).
I tried putting it in an analogy you might get. The point is, even though you might feel like you have plateau'd and are struggling to get better, you know so little about the game it's not really possible to start looking at the little things.
You still need to figure out how to farm. How to stop walking under tower by accident. That dragon and Baron exist. That's the kind of stuff you should be working on right now, not to insult you, but those are things most people who play the game don't have an issue with. but, again, you are still learning the game so it's okay.