Only 850 games? Bronze is to be expected.
Don't sweat it. Really. Everyone learns at a different pace, everyone puts different amounts of effort into learning. Some people just play to have fun, to unwind, and though some may not like it, to more or less zone out. Not everyone is a total tryhard, and that's fine. As long as you are proud of where you are at, that's all that matters.
Take me for example. I was a Plat V player in high school, but now 3 years later, I am in Silver IV. And you would not believe how excited I was to promote to Silver IV. I've played easily 6000+ games since I started in Season 2, but that doesn't really matter.
The game changes ALL THE TIME. It's basically not even the same game as it was when I started. Every champ I've ever mained has been reworked, and the items have changed drastically.
Keep in mind, Bronze III - Silver I is where 50% of all players are at. Even being a Bronze III player, you're fitting right in with most of the crowd, and you're even beating some people in terms of skill. Trust me. I know a few people stuck in deep DEEP Bronze V. It's a thing.
GL HF out there. But mostly HF.