Here is a scale chart for the diatonic scale starting on the E string:
Willie Nelson’s song “On The Road Again” is a good song for practicing melodies with this scale pattern. The song is in the key of E Major. To solo over this song, put your pinky (the orange note) on the 12th fret. I recommend starting by experimenting with some melodies on the bottom 3 treble strings.
On The Road Again