I’m saddened by your question. I’d like to ask what Sacraments you received on Saturday?
If you went through a period of instruction in the RCIA program, you should’ve been prepared to live out this thing called Catholicism thoroughly. That means whatever Sacraments you lacked you should have been prepared for as well as being able to live a Catholic life. That means the facts about the 10 Commandments, the 6 Precepts of the Church, what is the difference between mortal and venial sins, a rudimentary instruction on how to make an Examination of Conscience, and how to make a good Confession. Both your RCIA instructor and your Sponsor for your Sacraments were remiss if you are still unaware of the difference between mortal and venial sins. This is in no way your fault, however, now that you ARE Catholic, it is your responsibility to learn all you need to know to live a Catholic life and that includes the rules of the road regarding Marriage, contraception and divorce and life issues regarding raising your children Catholic. You are now the one responsible for your Sacramental life as a Catholic.
I’m also wondering why you’d need to come here to CAF to ask this question. Your RCIA Sponsor should’ve been the one you took all your questions to and you should’ve felt comfortable asking anything at all you need an answer to long ago in your period of instruction. In fact, I’m inclined to say that you need to let your new Pastor know how much you lacked instruction. He may not be aware of this situation. You should have all you answers long before you receive the Sacraments at the Vigil Mass.
P.S. I’m an adult convert too and had to go through RCIA as well and no, I too didn’t receive the instructions I was supposed to, so don’t blame yourself at all.