howdy and welcome to the forums
and Welcome Home!
you will find the past threads on RCIA with comments from teachers, team members, participants, catechumens and so forth on the Evangelization sub-forum, so browsing there may provide some answers for you
questions on the sacraments themselves are on the liturgy and sacraments forum
I would not wait for an answer to email but make appointment with the pastor for a personal interview to discuss your questions, needs and concerns. He will put you in touch with the right people in your parish. Bear in mind this time of year many are on vacation, so programs may not gear up again until August or September.
for instance I will respond to email and phone while I am gone next month, and all my candidates have those contacts, but wont have meetings and classes until august–we go year 'round except July because down here almost everybody is gone that month. yes I “teach” RCIA, really I coordinate all religious education programs, including preparation for sacraments, and for reception into the Catholic Church, for children, youth and adults of the parish. I am part of a team not a lone wolf. We have classes in English and Spanish.
My main job besides setting up the programs and the resources for classes and other processes to meet the varied needs of all these people, is to recruit and train catechists and other volunteers.
for instance this year we will have 7 classes of children ranging from grades 3-12 who will be making first communion, 68 teens for confirmation, about 5 adults and 20 children who will be received into the Church at Easter through RCIA. Plus about 600 children and teens in regular religious education and bible study classes. Somebody else handles classes, bible studies, prayer groups etc for adult Catholics, and infant baptism classes (for the parents and godparents, not the infants). We are required to provide 3 (2-hr) classes for parents and sponsors for every sacrament the children receive as well.
we have 8 people on the RCIA team, and if someone needs a sponsor–the person who is already Catholic who walks with them on their faith journey–we can provide one.
typically if you have never been baptized you can expect to spend a period of inquiry–where you ask questions, get answers, here the initial proclamation of the gospel and who Jesus us and what He has done for us. when you, and your team leaders, feel you are ready to move on and begin the process of becoming Catholic, you will enter the catechumenate, the longest period of prayer, study and preparation, which lasts no less than one year. The period of Lent before the Easter in which you will be baptized is intense preparation spiritually and when conversion is tested and supported through the prayers of the entire Church. At EAster you are baptized, confirmed and make first communion. the final period, a minimum of 50 days after Easter, ideally at least once a month meetings for a year, is mystagogy, and is very important, If you skip it, you risk losing what you fought so hard to gain. It is when you reflect on what happened at Easter and begin, with support of the parish, your new life in Christ.
Each of these periods has a period of transition which is marked by certain rites (sacred celebrations) of the Church intended to strengthen and support you. These rites will be explained as the arise, so as not to overwhelm you.
You can expect, during your journey, to spend some time with your teachers, sponsor and other candidates reflecting on the Sunday readings, especially the Gospels, learning about the beliefs and practices of the Catholic church, and most especially undergoing conversion with the help and support of the Church
again, Welcome Home. start a thread on Evangelization for specific questions. one expert here on RCIA is BroSFO
If you are already baptized, your special status will be recognized and honored. you will probably find yourself in a class with others like yourself, but also unbaptized persons, and adult Catholics who have never learned their faith and need confirmation. You may study together since you need to learn essentially the same things, and pray and hear the gospel together, but the transitions, periods and rites will be different for each group. You will support each other in the process as well.
How long will all this take? as long as it takes for you.