You COULD spend hours and hours reading Catholic books that give explanations on those questions.
OR, you COULD just put those questions on the back shelf of you mind and continue on with RCIA.
Then, at the end of RCIA, or near the end, see if you still have those questions. If you do, you can get the books you need. They are not hard to find. Really they are not.
But, if later on, these questions don’t seem to matter any more, or if you can see the answers to them, just think of all the TIME and struggle you will have saved yourself.
The Catholic Religion is, above all, about an ever-growing connection with the CREATOR. With that connection, everything is solved. Without that connection, nothing is solved no matter how many books you read on apologetics, theology, philosophy, Church history, etc.
SADLY, I’ve seen so many sad Catholic consume their lives by endless STUDY related to questions related to logic, history, and apparent contradictions in Church teachings and in Bible verses. UGH! The Catholic Religion is NOT about being super-ultra LOGICAL. It is about a relationship of LOVE, FAITH and HOPE with your CREATOR.
But, don’t take my word for it. Who am I? I am not God. I am not a priest, bishop, or doctor of theology. Test all this out for yourself in your heart and in your daily life.