baptized Catholics received Holy Communion.they have already had first confession you can’t be confirmed unless you’ve been baptized and received Holy Communion. i see your not a baptized Catholic have you attended rcia? you must do this before you can even be baptized.
as far as i know, the rules are this. a convert from a different belief or no belief must attend rcia before anything can happen. not just that, some baptisms in the church are considered valid. you need to find a priest and speak with him about this.
the answer to your original question based on what i read in your profile if your referring to yourself in the original post, is no based on what i know. you should not go to confession if your not a Catholic.