Overcompensating on being sharp == going flat

I just read the last two posts in succession — I’m trying to overcompensate for my tendency to reach upwards too much when I have to play a high 3, and I’m going flat as a result. I know what the solution is — scales. Scales endlessly, scales until I puke, so I stop getting lost or nervous when I have a high 3. I need to map out how to play scales — one to a bow, two to a bow, four to a bow, etc. And do it the ye-olde-schule way, with the little hop up and down to start so that it works out four to a bow evenly.