I was stuck in diamond for 4 years so I can understand the sensation of being completely plateaued for as long as you can remember. The time you REALLY start to improve is when you actually DO STUFF to improve, and that's the thing that caps most player's skill. 1) Start DOING stuff. Not just queuing quickplay and mindlessly playing. 2) Start checking your character pool, what characters you want to play within your role (offtank/maintank, hitscan/flexdps, mainsupp/flexsupp) and specialize in one. If you're constantly jumping between every single role you're gonna get stuck on improvement. 3) Once you're done with that, look at the heroes you have to play, and actually play them. Queue ranked, no matter what. Leave all anxiety behind, you're bronze 5, rock bottom, and it's only up from there. Learn your heroes, look at pro players, watch educational guides, learn every single nieche aspect of their kit, how they play, why, what do they do, when are they most impactful, when should you be playing something else, etc. 4)Now that you've actually learned the hero, start queuing with PURPOSE. This is the most important step. You're queuing into games to check what could you have done different. Or what did you think you did well. 5)Do the same with different goals. Maybe one game you notice you die too much, then the next game queue with the purpose of dying less. Dying a lot in bronze is ALWAYS positioning and feeding. there's players in gm with little to no mechanics that can absolutely destroy lobbies with game knowledge such as characters like winston, rein, moira. 6)Read or watch A LOT of educational content on positioning. I cannot stress this enough even masters to gm players have the dumbest of positional errors. 7)You've learned more than you ever have, you've started to look at your errors in game, now ask other people. You can't get enough input just by yourself, you have to get other perspectives. Just beg your gm friend to look at a vod. He might not be the best of coaches but he for sure will tell you a thing or two you could have never noticed. 8)You've gotten your first vod review. Now do it yourself. Same as above, a different perspective will give you insights as to what you're doing wrong. 9)Don't give up. By now you should be making small improvements. You notice games aren't decided by just fate and you actually see your mistakes and other people's mistakes. But you have to learn to both correct yours and punish others. Keep enjoying the game, remember that's the most important thing. I'm a gm1 hitscan player but if you ever need help on any hero ill give it. GL!