What's the solution for chin muscles now under face after chin reduction? (Photos)

(V-line surgery). Causing dynamo chin Ptosis, what is the solution? Had T osteotomy last year. Originally the reduction was so overdone I was left with a pencil point chin and a waddle. Scar was from trachea shave, genioplasty was intraoral. Doctor added bone graft to widen chin but I know have a submental divot where graft was added and pulling when I smile chew speak etc. This has ruined my life and self esteem. Doctor plans on doing a lower face and neck lift and a chin pad resuspension. Is this correct since there is too much tissue? Would an implant work?