Has god 'called ' you?

I truly feel that God called me to the Catholic church I'm currently in the process of joining. What makes me so sure? Because I grew up loathing organized religion, I thought it was ludicris and I didn't grow up with Catholic parents (my father was a non-practicing Catholic, but I grew up with my mother), but joining this church is something I have to do. I'm not even sure why I feel the need to do it, and I doubt all the time. I feel very strongly called to this church. It's in the M every time I go, in the way I feel when I'm attending the RCIA cles, every time I speak to one of the priests. It just speaks to my soul. Some of the people on the RCIA team who have only joined the church in the last few years have mentioned having similar feelings when the first joined. Something tells me the first time I get confirmation or when the priest annoints me (I forget what that's called) that I'll know, I'll figure it out eventually. It'll come to me. But for now, it's just something I have to do.