You are forgetting how to stay in a mode. All the advice about discipline will not help you. You should do something like the following:
1. Begin a file and use Matrix
2. Set the starting tones to the note of your choice. All E's etc.
3. Begin writing a melody with this note as the dominant tone.
4. Write all parts of the song, with this new setup.
Many times, people leave the damn machine on C for start up, and it disrupts your ability to play any other mode. Every Reason song designed ever, begins with a C cause no one thinks outside the box.
Try a Matrix setting of E, or A for a new sound and use that as your dominant note.
You are mixing the modes of your recording or file so nothing is probably coherent.
My band is Rankine Star, the singles are at this link: