Wing,
The Trinity is a very complex topic. You are wise to note the influence of the false teaching of the WT in regard to reasoning on this: we come from a background that is filled with historical re-writes and half truths.
I want to recommend a book, however, I loaned it to a young pastor. It is not about the Trinity, however, it deals in depth with the "Arian contraversy." I will get that to you.
Meanwhile, I would encourage you to do some research on the Eastern Orthodox perspective of the Trinity.
Also, as the Trinity is NEVER mentioned in congregations that I have attended, please, please do NOT let this doctrine hold you back from all the positive things that come about by association with "believers."
I will post the name of the book, later.
PM if you want....
V