If you are baptized Catholic you do not need RCIA, that is for the unbaptized, or those entering the Church from other Christian denominations. What you do need is preparation in a class for adults for Confirmation, which completes your baptism, and First Communion. Preparation for first confession will be part of this class.
Speak to your pastor immediately. If you can convince him that you understand what the Eucharist is and you have the desire to receive Christ in the Eucharist, and you know how to make a good confession of all the sins of your past life (which must precede first Communion) he can bring you to the sacraments as soon as possible, and you can continue to prepare for Confirmation. If he feels, in his wisdom and best judgment, that some further preparation is necessary he will put you in a class for that purpose. do not wait, this is the time to begin.
If you have marriage issues - civil marriage, remarriage after divorce etc. they must be dealt with first, but you also need to see your pastor on that, so make and appointment first thing Monday morning. go for it. Christ is calling you, claim your baptismal promises. If you have been attending Mass and practising the faith all your life your preparation will be less than someone with no knowledge of the faith. But the longer you wait, the longer it takes.