You move to a new house and memorize your new phone number. now, you can't remember your old phone number. this is an example of

This is called Retroactive interference. It happens when a new learning interferes, modifies or eliminates information that we already had stored in the long-term memory. In this case, the learning of the new telephone number eliminated the memory of the telephone number learned before.

I hope my answer can help you.

Vanessa had a dream to be a ballerina. with her father's she had that opportunity.