Can we restrict a user to view lead/opportunity created by him/her only

Summary:

Hi Team,

We have a requirement for some users, they should only view objects created by them only Lead and Opportunity.

Content (please ensure you mask any confidential information):

How we can customize the roles to achieve this requrement?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):