It's about what looks good on you and what makes you feel attractive and confident. Good advice is not to pay too much attention to the fashion magazines with their perfect models. Look for a suit that covers or camouflages the areas you want to hide, and plays up your best features and emphasizes them. Today's swimwear can get pretty high-tech. With pads and underwires in the tops build you up.
Bottom coverage varies greatly, and can work to flatter most anyone.
Fabrics vary too with many prints and colors that work to slim, conceal, or accentuate as much as you desire. I take really good care of my suits and they still wear out so fast and lose their shape. Actually, you are probably being too careful, and that's the problem. One of the most common mistakes is in the after wear care . Many girls carefully rinse in cold water and use a very mild soap.