The nice thing about reading Greek, is that there are so many resources available. There are grammars that teach grammar. There are translation books that help you translate passages, which are progressive. So they start with easier passages like John and 1st John and work their way up to Luke/Acts, Hebrews, and the Septuagint and early church fathers. There are word cards, audio tapes, a Daily Dose of Greek.
There are Greek commentaries, exegetical Greek commentaries. If you take Greek from a recognized institution, the professors are always accessible for questions. You can take Greek on-line with Bill Mounce, including face to face classes. Or you can just get various text books and read and study. And memorize! Lots of memorizing!
https://billmounce.com/firstyeargreek
But Elizabethean English, not so much! Is there are grammar book or class anywhere? Of course, I could care less about learning how to parse or conjugate what is basically a dead language, for a poor translation from corrupted manuscripts. Why would I want this know obsolete and archaic Elizabethean words, when I can memorize all the Greek words. Or Hebrew, if I was so inclined?
God wrote the Bible in Hebrew and Greek. Moses wrote in Hebrew, it doesn't matter what language he spoke to the Egyptians or the Canaanites in. What matters is that God inspired Moses to write in Hebrew, and, yes, Daniel wrote a bit in Aramaic, which is similar to Hebrew. That's why BDAG has a short Aramaic Lexocin in the back!
And the New Testament was inspired and written in Greek, not Elizabethan English. The KJV is not inspired, it has mistakes everywhere, because it is based on 7 corrupted, very late manuscripts, with many passages added by scribes, who being human, liked to clarify, or add margin notes, or feel asleep while being dictated to, resulting in the telephone game, and no, God did not inspire the copies, which get more and more corrupted, the further they are from the original autographs.
I trust God, and the Holy Spirit, who have led me on this amazing journey to know and understand God's Word better. Learning Greek is not for everyone, but learning Elizabethean English? That's for no one except fanatics who do not know anything about manuscript transmission, and have the nerve to say that if someone changed the Greek in the 10th, or 14th or any other century to conform to THEIR brand of theology, then it is inspired, even though it is not what God had the apostles who wrote the New Testament say! Absurd!