Here are some additional tips to help your imitation jewelry last longer:

Limit Exposure to Humidity: Store your jewelry in a cool, dry place to prevent moisture from tarnishing it.
Take It Off Before Activities: Remove your jewelry before exercising, swimming, or doing household chores to avoid damage.
Avoid Heavy Contact: Be mindful of how you wear your jewelry. Avoid snagging or hitting it against hard surfaces.
Use a Jewelry Organizer: Invest in a jewelry organizer with separate compartments to prevent pieces from scratching each other.
Keep Away from Heat Sources: Store your jewelry away from direct sunlight or heat sources, which can cause fading or warping.
Regularly Check for Damage: Periodically inspect your jewelry for loose stones or clasps and fix any issues promptly.
Wear It Often: Ironically, wearing your jewelry can help prevent tarnish by keeping the oils from your skin on the surface.
Avoid Tight Spaces: When storing, avoid cramming jewelry into tight spaces, as this can lead to scratches and damage.
Use Protective Coatings: Consider applying a clear nail polish on the inner parts of rings or pieces that frequently touch your skin to create a barrier against tarnishing.
Be Mindful of Storage Conditions: If possible, store jewelry in a dedicated jewelry box that blocks out light and moisture.