The RCIA is disigned for the non-baptized. To require it of all baptized Christians coming into the Church is an injustice. I encourage you to approach your parish priest to see what can be done. I know some parishes are adament that everyone go thru the RCIA. But, if we are true to the process, we will set up a different process for those coming from other faiths, who have been joining us in worship for some time. The special program will depend on many factors, including the faith background of the individual seeking full unity. There are even some who were baptized Catholic who actually need the whole RCIA process to catch up. At the other extreme, I have one person in this parish that I have offered to receive into the Church with only one or two sessions of immediate preparation. She has been coming regularly for some 20 years and also comes during the week.
Check with your priest.
Fr. LInus