Hi Yinmui, so you’re fighting an internet addiction 😉 Waaaw, you’re very brave to focus on nothing but scales. I’ve also heard similar stories. I heard about someone who did nothing but long bow strokes for 3 months paying full attention to tone production and bowing straight and it worked great! I think it’s correct, because when playing pieces you have to focus on so many things, too many things… When playing scales you can just focus on intonation and tone production. I wish you the best of luck and don’t give up!!