Here we are speaking about two distinct “calls”, which need to be taken one at a time – the call to be a Catholic and the call to priesthood or religious life.
For an adult to become a Catholic the usual process is first to start attending a local parish community. Arrange a meeting with the parish priest and, when you feel ready, join the series of enquiry evenings, often called R.C.I.A. Once you have completed these sessions, they very often lead up to the Easter Ceremonies during which is the usual time to be formally initiated into the Catholic Church.Then, you will need to spend a few years getting involved in the local parish community, experiencing the inevitable ups and downs of the spiritual life and parish life, making friends with fellow parishioners from varied backgrounds and diverse opinions.
If the call to priesthood or religious life persists, then have a word with your parish priest and make contact with the Vocations Team at The Old Friary and follow their advice. See the contact details elsewhere on this website.