It's worth picking up a book like Alfred's "The Complete Book of Scales, Chords, Arpeggios & Cadences". It has exercises in every major and minor key, with fingerings.

Knowing the fingerings is a good start, but you need to learn to do these exercises without tension and with proper posture and hand movements. This is something where it's best to have in-person instruction from an expert who can show you the technique and correct your mistakes. But if you can't do that, maybe the next best thing would be to watch some YouTube videos and record yourself playing.