I haven't been converting for too long and I am not yet a member (hopefully soon!!!).
But I think it has to do with personality and maybe the parish? I feel at home in some aspects of the liturgy and like an alien in other areas. A few Vespers ago, I was asked to chant. It felt so foreign to me and I was so nervous! I had no clue what was going on. Haha. So in that way, I feel vulnerable and unsure of what is going on and what I should do.
But when I am standing during Vespers, I feel like I have always been there in a way.
I wonder if others in the conversion journey also feel comfortable in some aspects and areas and not so much in other areas. Maybe it has to be with what you are use to as well? Since the Evangelical church I have been in had a rock concert for their music. Haha