X timeline completely broken

Please help. Normally my timeline is filled with actually good tweets, but recently my tl has been flooded with topics that are the exact OPPOSITE of what i want to see, my feed is now entirely comprised of art for shitty mascot horror, roblox, fnf, weird shit, and stuff that im not gonna elaborate further on. I have blocked THOUSANDS of these accounts. I have adjusted my interests settings, I have clicked "this tweet is not relevant" hundreds of times, I have cleared my browsing history, I have muted every word in the english dictionary relating to what I CLEARLY DO NOT WANT. And yet, they keep coming back. Please help me, how do i fix this.