Sorry to hear that. Do not do much of anything for Pocket as it has it's own support site : https://help.getpocket.com/

Please let us know if this solved your issue or if need further assistance.

Did you have Pocket set up to synchronize to the cloud? In that case, you should be able to reconnect to you data using the same login.

If Pocket was only saving locally, there's a reasonable chance the data is still on your system somewhere, but you'll need help on chasing it down and how to import it. Hopefully the above link will help.