I'm going to Florida and my mom will not let me wear a 2 piece unless my body is "physically fit" I only have a bikini and I need a bathing suit to go to Florida... we don't have enough money to buy a nice bathing suit, and I really hate one pieces... they are just too uncomfortable and frustrating... how can I get in good enough shape to wear a 2 piece? I'm only 5"2' and I weigh about 163 lbs...