My BBL surgery was the end of August 2020 in NYC.
Thanks for using Real Self and posting 2 phots. You need BBL Revision/Reshaping surgery. There are VERY few boarded PlasticSurgeons willing to "fix" you. Best to virtual consult with... Expect fees from $6,000+ There are specialized techniques to correct your issues.
The one buttock has too much fat at the lower pole which is hanging over your crease. it may be able to be liposuctioned or a lower buttock tuck (removing skin by making an incision in the crease).Best wishes.Dr. Taranow