Taking good care of your earrings will ensure longevity.
Store earrings in a cool, dry place.
Moisturiser, sunscreen, hair products and make up can react with acrylic, so it is best to put your earrings after using face/hair products.
Clean acrylic with a soft, dry cloth.
Stud posts and hoops can be cleaned with an alcohol wipe or similar but take care not to only use on the posts/hoops and not the acrylic.
Enjoy them :)