What Christian denomination am I a part of?

I have been brought up in a church group where our church history has never been taught and they refuse to call themselves anything other than Christian. This makes it very difficult for me to research how they started from a historical perspective. If anyone has an idea of what it could be, I would be very thankful. Here are some practices and beliefs unique (again, I say this with some uncertainty) to this group. 1) 7 Dispensations and frequent teaching of them. 2) Women in church should write their questions on slips of paper, then hand it to a man to read out loud for them. 3) High regard for the Darby Translation. 4) Saying “Lord’s Day” instead of Sunday. 5) Their own hymn book, called “Spiritual Songs.” Some beliefs and practices that are broadly found in other denominations but might help in identifying this one are: Believers cannot lose their salvation. Believers baptism. The Eucharist (or as they call it, Breaking of Bread) is only symbolic. Women veiling during meetings and services. No Ecclesiastical structure or even any titles of “pastor” and the like. Belief in the doctrine of Predestination. I hope somebody might be able to help me out.