Desperately need help!!!!

Fancy Nancy
Y'all, my boyfriends mom just invited me to go to the beach with their family at the beginning of June and uhhhhh I'm not beach ready...at all. I don't mind wearing a tankini to cover up my sushi rolls lol but I want to thin my legs and get rid of the cellulite. I live in a small town and I don't have a car so I walk everywhere, but I need some other ways to speed up this process If possible. I just don't want to be like a beached wale lol. I know it's basically impossible to go from plus size to Victoria secret in like 2 months but do y'all have any tips to help a sista in need out!!??