DD turned 6 months and I've decided to try purees. I've tried making my own and some of the organic store bought kind. She doesn't seem to like anything! Is this normal?

It takes forever for me to feed her. It's a struggle to get her to open her mouth and when he does, I feel like I'm a thief trying to get her to take just one more taste

How long is the average feeding session supposed to be? I feel like I can sit here all day! How long is it supposed take between "bites"? I'm a complete and utter noob!