My wife and I share an apple id, i want to get a separate apple id

Follow the instructions in this support article that best meet your need:

Create and start using an Apple ID - Apple Support

Cheers,

GB

You should have seperate IDs.

Be aware that all purchases made with the first ID will forever be tied to that Apple ID. To provide access to those items for the new ID, you should consider setting up Family Sharing.

Create and start using an Apple ID - Apple Support

Family Sharing - Apple Support