Regret buccal fat removal - how to fix it? (photos)

Hi, I’m 31 and had buccal fat removal on one side of the face to make it more symmetrical. The surgeon removed too much fat and I already regret it. If I do facial fillers to fix and if I get it done repeatedly, how will this affect my skin and face in the long term? Is it best and more natural-looking to do a fast transfer? With fat transfer can I achieve a look that does a good job of filling out the hollow appearance in the buccal area or is this difficult to achieve?