There is an excellent website called freetaxidermyschool.com that has several really great videos of entire skinning and mounting processes. You need to create an ID to use it, but you can enter a fake address etc etc and just use your email and a password. It’s an excellent resource.
Just remember though that there are literally hundreds of different ways to do each part of taxidermy. If you don’t like one method, find another or try your own! Don’t get discouraged!
Good luck ❤️