The answer
This is a very important time in your life. The Holy Bible and many spiritual books and digital literature are readily available. However, prayer and fellowship through the Divine Liturgy are equally valuable. Thus, you must begin by discipleship under the guidance of a priest that will become your spiritual father, confession father, and mentor.Here are some English books by HH Pope Shenouda III of Thrice Blessed Memory: https://st-takla.org/books/en/pope-shenouda-iii/index.html
This link provides literature on Orthodox dogma and rituals in the Coptic Orthodox Church: https://suscopts.org/resources/literature/orthodox-faith/
Answered by His Eminence Metropolitan Youssef (opens in a new tab)