look on the channel tab at the top of the page.

A couple of instructors have single lessons to try ro explain alternatives .

I also struggle, especially with upstrokes. Anders, Caren and Gary have lessons

similar video's on youtube or try googling. Justin Guitar does a reasonable tutorial.

All seems very experimental.

Fingers, thumb, finger and thumb, ghost pick

I use a pick when practicing but still spend 5 minutes trying to find a finger strumming style that works for me.

Also noodle a bit with finger picking, google tends to include finger picking in searches for finger strumming.

It is improving. I think as beginners we tend to be a bit heavy handed and our fingers dig in.

I know my strumming improved by using the thinnest pick I could find

Sorry I couldn't be more help.

Dave