I was 34 when I had my surgery and it was so much easier than I thought it would be (never had surgery before). Honestly, for me it has been the best thing I have ever done for myself. It is a personal decision. I wish you the best in your process, whichever direction you choose.
You may lose slow maybe not, the key thing is the scale will move in the downward direction. I don't know about you, but for me...the scale kept going up year after year. This new direction of mevement is wonderful. 1 pound at a time they all are wonderful.