One issue with learning scales is the way you practice them may not resemble the way they occur in real music. Especially classical and jazz music. Scales move in and out of one from the other.
In Bach’s music, he would use scales to modulate into other keys.
With this scale Transformation worksheet, my hope is for you to learn how each scale (and corresponding key) are connected.
This is A LOT of work, months and months of memorizing the names of your notes in each scale (which one has sharps, flats, and so forth).