“RCIA” is the Rites of Christian Initiation for Adults. It is the way the unbaptized are received into the Church.
People may be prepared for Baptism and the other Sacraments of Initiation through instruction with a priest, or, he may designate others to provide this instruction. Many times parishes set up a schedule of these sessions and for some reason this “Instruction in the Catholic Faith” has caught the name “RCIA”. This is sort of like sending your kids to their place of learning every day and saying “Get up, Johnny, it is time to go to Commencement!”
Anyway, those who are already validly baptized ought to meet with their Pastor and see how he wants them to be prepared for entering into full communion.
In some parishes this will mean they are shoehorned into the same sessions as the unbaptized. In other places they will have a different process.
Just talk to your Pastor.
As conversion is not required to be married, you won’t likely get a “fast pass” for that reason.