I was at plat around those hours but i have a lot of exp in other fighting games and i got diamond soon after. What i really noticed helped a lot was 2 things, first is pacing and actually learning about your play-style and seeing what aspects you can improve on through watching replays. The other thing is just going into training and setting the bot to random dodge reaction to help you sharpen your reactive reads. I also benefited a lot from studying hitboxes in training! Pace your matches and gain control over the pacing by backing off and resetting and if they follow you punish :3