No worries, there is maturity in the position you are in. I was inquiring into orthodoxy for a year and a half before deciding to go through the catechumen process. There were several things that were hard to swallow, but having changed my mind within the protestant world so many times, i recognized that several times in the past i was disagreeing with something because of a limited understanding of the topic. I found that orthodoxy often uses the same words but the words dont mean the same thing that they do within protestantism. There are several books i would recommend, I always think that the best way to learn someones position isnt to ask someone who disagrees with that position, but someone who holds to it. Should be an obvious conclusion, but youd be surprised how many people take what Macarthur says about orthodoxy as the final authority, Lord bless him 😅. I have an online folder i cam share with you if interested. One book is called "Know the Faith", which deals with objections like the one you mentioned, intercession of the saints, mary is a big hurdle, etc.