Lf1 is a medical procedure which moves your teeth and bite, compared to the previous surgeries you've had that are pure cosmetic. Going into a Lefor 1 requires an in depth analysis of your bite and may also involve orthodontic work and a full bimax surgery. This may also make some of the previous procedures unecessary, as it will reshape your face, and the previous analysis that was performed for the cosmetic procedures may not apply any more. If you wish to proceed with any procedure, it should be a full workup with an orthodontist, looking into your bite and perform a full surgery if necessary. After that, other procedures such a feminization of your facial structure etc can be performed, or if it's a good surgeon, maybe at the same time. I also don't understand if you think you have a retrognathic profile, or if you've only been told so and don't agree.