I have neck fat/a neck roll. What can I do to get rid of it? (Photo)

This is very difficult deformity to eradicate! Although liposuction can create significant improvement, it may not end up with completely satisfactory result. Neck lift in some cases may be better option. Also, deep neck lines, that are significant part of this problem, are better treated with neck lift; injection of nano fat grafts (stem cells) into creases has shown promising result in our experience. Good luck.

facetite + liposuction will be helpful. fillers tot he bands will help, long term morpheus is office every 2-3 months for tightening.  at home dermarolling should be done weekly (see link to emeragecosmetics.com).
With significant neck sagging you would need a neck/face lift with muscle tightening (platysmaplasty). at the same time lasers (fraxel,  co2 or erbium( or microneedling RF (fractora, intensif) can be . performed to improve the crepe skin or wrinkles.  You need a formal consultation, as the neck can be treated with a combination approach:
1. micro needling and lasers for texture
2. botox, disport or xeomin to help platysmal bands
3. intensif or fractora RF microneedling for crepe skin and lifting
4. fillers like belotero, restylane silk, juvederm volbella to improve lines and folds
5. neck/face lifting if sagging is prominent or early starting +/- platysmaplasty (muscle tightening)
6. J plasma/Renuvion, thermiRF, inmode facetite for internal tightening
7. ultherapy and thermage for external tightening
8. regular Venus legacy, exilis ultra, or inmode forma treatments with facials to maintain tightness
9. PDO novathreads or silhouette instalift cone threads for lifting and long-term collagen production
see an expert for a full evaluation and treatment plan based on your individual situation and goals.
Best, Dr. Emer

This is an office procedure that can be done under local anesthesia. Liposculpture liposuction can improve the fat roll of your neck. See a board certified ASAPS plastic surgeon in consultation. Stay safe..and good luck..

Thank you for sharing your question and photographs.  If in a physical exam of your neck this roll proves to be isolated fat then liposuction of the area should provide you a nice improvement.  If excess skin then there are little options at improvement.  Seek out a series of in-person consultations to get the best advice.