TikTok problem, anyone else experienced similar

I have a niche fyp with interests I like. I'll scroll for 20 videos or so and then the next 10-20 will be random, popular mainstream videos with hundreds of thousands of likes that don't appeal to me. I get makeup and perfume ads even though I'm a guy, I get random girls dancing on my fyp. Etc. how can I fix this? Not interested never works neither do blocking hashtags