Help! Uneven butt?

A while ago I had a dance injury but I brushed it off due to auditions. According to my symptoms I self diagnosed myself as having a torn groin. It got better but now I'm noticing it feels like my right leg is longer. I injured the left "side" of my groin and someone told me my left side might be extremely "loose" right now and my right is extremely tight so my hip flexors are uneven. I went to a physical therapist who thinks I might have torn my right labrum. Either way, there is more weight on my right leg so when I workout my right side gets worked out more. The right side of my butt is way bigger than the left especially on the top. There's like an inch difference. I don't care as much about the hip problems as I do about this aesthetic one. Is there a way to only build the left side of my butt, targeting the top? Also what's a general diet I should follow to build this muscle up? Thanks in advance and please don't leave any harsh answers.
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Also my butt is almost purely muscle. I do favor my right leg more and use it for more kicks and jumps but your standing leg does much of the work. My right butt cheek is overall bigger but I'm working on exercises to fix that it's just I don't know how to target the top of my left butt cheek lol.
Help! Uneven butt?
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