help with flow/pre-loading

I have been playing osu for ~2 years now and I have been trying to get better most of that time. I can't seem to get good streams no matter how much I practice them. I have come to the conclusion that I am pre-loading my fingers hardcore. How do I fix this? I have tried bpm training but I feel like I just get better a reading the different BPM's and learn to preload them better. I have also tried just focusing on relaxing my arm and trying not to tense it but I just revert back to tensing it whenever some tripple/stream comes up. Specifically groups of trippes of 5's.