How to be a good girlfriend
I have never had to really care for another human being in this way. please help
Are you searching for tips or an actual step by step?
Tips
Edit: for some reason I read that and thought you had a girlfriend. I would say that cuddling is key.
You can’t “be a good girlfriend” in general. You can only be a good girlfriend to one specific person, in the sense that what’s “good” to one person may be “bad” for another one.
You should observe the person you’re with and see what they like and dislike.