When I do my models, I fill in the feeling line but not sure it’s accurate.

I am getting better with my models and do them most days. What I’ve noticed is, when I get to my F line, I’m using my mind to come up with a feeling that seems like it fits instead getting in touch with a vibration in my body. I think I’m doing this because most of the time the only feeling I come up with is anxiety. I would like some suggestions on how I can try and connect to other feelings.
Thank you!