I feel bad about my neck, would a lift be beneficial? 63 w/ sagging skin. (photos)

Thank you for your question and for providing photos. When performed by an experienced facial plastic surgeon, a facelift can provide favorable, natural-looking results. Excess fat in the neck can be removed along with excess skin to create a smooth appearance and angulate the neckline.
Underlying tissue that has fallen over time can be repositioned as well to achieve optimal results that may last for 10 years or even more in some patients. I recommend scheduling an in-person consultation with an experienced, board-certified facial plastic surgeon. They’ll be able to conduct a thorough physical exam to determine the procedure that is right for you.

​A combination of non-surgical options like Kybella, PDO NovaThreads, Ultherapy and Thermage would do well in combination for skin tightening for the neck. VASER Liposuction (with ThermiRF, Renuvion and InMode FaceTite) is a great alternative for contouring and tightening the chin and neck and can be combined with a neck lift at the same time, if you're a candidate. I suggest getting a formal evaluation with a cosmetic dermatologist to develop a long-term treatment plan that works for you. Best, Dr. Emer.​

I agree with you. Your neck has excess skin compared to the rest of your face. I also agree with the surgeon you saw - you do look good. However, if you are concerned about your neck now, you will be even more concerned 10 years from now. If you are willing to have surgery, there is no advantage in waiting.
A neck lift will help you. An incision in front of your ear, from the hairline at the temple to the bottom of the ear, and ending behind the ear at the lower scalp at the posterior hairline will allow access for the surgery. When I see celebrities as you describe, I wonder if they did not have the incision extend behind their ear. The downside with this incision is that it is in a visible location. Some surgeons try to avoid this incision because the scar can become wide and is in a visible location, but without this incision, the neck can't be accessed completely.
Your jawline and midface look good, however these areas need to be assessed when you are not smiling as well as when you are smiling.
Your chances of getting it right depend on who does the surgery, how the surgery is done, and how you heal. It is often worthwhile to do more than one consultation, and make sure you discuss your goals clearly with your surgeon. Ask for surgical details, for example, how the platysma muscle and how the skin will be managed. Look at before and after pictures with your surgeon if possible so they can explain the results seen on the pictures. Don't have your eyes treated as you are not bothered by your eyes and the lines around your eyes add to your smile in your age group. This will also help you avoid looking like you had too much surgery. Follow the pre-op and post-op instructions carefully.
All the best to you,
Dr. Nancy de Kleer