Tips to get un hardstuck

I have been hardstuck at 11k-13k elo for months. I do aim training fairly regularly, always warm up before I play, watch pro play / pugs and educational vids and have genuinely been trying everything I can to improve and I’m still stuck. I’ve been really focusing on my mindset too and trying to be in a good mood and not playing when I’m tilted or not feeling it, and I just can’t consistently get wins. I feel like I’m a fairly good teammate, I’m never toxic if anything the opposite, trying to help my team as much as I can and support them. What else can I do? Am I over complicating things, and should I just focus solely on my aim and strafing and just simplify my game until I can just out aim everyone at this elo and just swing everything? I feel like I’ve really hit a wall, and no matter what I do or how much momentum I feel like I start to gain it always ends up falling off. Anyone else who has been stuck in this elo range and managed to get out, please share what helped most for you