Newer translations are watered-down and contain new Age theology. They take out important words, entire phrases, sometimes even entire passages, from the holy scripture.
Personally, I don't want to be cheated out of what the Holy Spirit might want to say to me through something that exists in the kjv but is non-existent in newer, watered-down translations; for that I am reading a watered-down translation rather than the kjv.
If you want to miss out on the whole counsel of the Lord, I suppose that that is your prerogative, more power to you.
I really hope that you make it.