Ask How can I set up a staging environment to test changes before going live?

[SuperAffiliateX]

I want to make changes to my membership site, but I'm scared something might break. I've heard that a staging environment can help, but I don't know how to set one up. I don't want to mess up my live site while testing updates. Do I need special tools or a separate hosting plan? I also want to know if there's a simple way to move changes from staging to live without issues.

How can I set up a staging environment to test changes before going live?