Need help migrating a site from localhost to server

I developed my first WP site and ALMOST everything works. It runs on WAMP on my desktop and I managed to get it migrated to my third-party hosting service, SQL tables and all.

The only problem is my images. Obviously when I developed it all the links were formatted as:

https://localhost/ [bunch of path names] /image.jpg

and now they need to be:

https://www.mydomain.com/ [bunch of path names] /image.jpg

What should I have done differently? It is only ten images so I am happy to edit them one by one if necessary. What I did was upload all the images to the Media Library when I started, and then I used the insert from Media Library to place them into my pages as they were created.

There must be a better way to do this.