First, make sure you learn the C Melodic Scale on each individual string.
Next, learn each of the C Melodic Minor CAGED fingering patterns.
After this, study the C Melodic Minor 3NPS (3 notes per string) patterns.

First, make sure you learn the C Melodic Scale on each individual string.
Next, learn each of the C Melodic Minor CAGED fingering patterns.
After this, study the C Melodic Minor 3NPS (3 notes per string) patterns.