Plain Star Necklace
Tiny Heart floating on chain.
Brass with gold plated chain & clasp.
Plated metal jewelry is Fashion Jewelry. It won't last forever, but with reasonable care it can last several years. Interactions with salt water, chlorine, high humidity, sweat & other chemicals like perfume, lotions, hair sprays, will dull the metal & most likely discolor. Over time the plated gold will eventually wear off.
Take off in between bathing, swimming, avoid getting wet or leaving in high humidity environments like bathrooms.
Your fashion jewelry is pretty, fun & didn't break the bank, if you take care of it, it can last a good long while.
Wear in good health & happy vibes.