How can I fix my ruined smile and lower lip issue from damage caused by NP "breaking up chin scar tissue"? (Photo)

Hello, Im hopong someone can pleaae guide me. This has ruined my apprarence and my self confidence, and my desire to be social at all. An NP I went to for filler offered to "brrak up scar tissue" (I didnt not have any injiry or scar) between my lower lip and chin. She said it would allow my chin to come down a little for softer look. My lower lip has less integrity, pushes uo into mouth looking thin and when I smile it is straight or it isnt round U its straight, what can I do please?