How are you storing those seeds?
I just keep them in my pantry, in their packages in a plastic shoe-box sized container.
Don’t freeze seed - if there’s the tiniest bit of moisture, they can crack.
This isn’t for long-term storage; just for next year. Germination should be just fine.
Ellendra can explain about long-term storage if you’re interested.
Most seeds* are fine in just a cool, dry place. Except for a few species, most seeds will keep for years that way. I grew tomatoes this year from seeds that were 20 years old, that were stored in a box in the corner of my bedroom. No special treatment needed. If you live in a hot climate, or one with high humidity, you might need to take special precautions, like keeping them in a jar with a desiccant packet, in a cool corner of the basement.
*There are exceptions of course, which are best kept in the fridge or freezer. They’ll usually say so on the package.