Just replaces thermal paste and i had given up but never give uo

So I replaced my PS4 thermal paste with artic silver 5 , my PS4 would run so loud it's crazy, I took it apart all together 5 times. First time I used a tiny bit of thermal paste, second time a line, third time it was spread and then the final time a pea sized grain of thermal paste, and I made sure to clean my PS4, also the fan make sure there is no dust there, also I used compressed air to. And to my absolute amazement my PS4 has gone quieter than before , not completely silent but silent enough. Mgs v doesn't sound super loud now, FF xv doesn't sound super loud like jet engine, and bf 1 running perfect. I am so happy now that I didn't spend extra on a new PlayStation. The reason I took it apart so much is because it was still running super loud, so fifth time was the charm .