I think that I am more than one of a "few" soon!
There is plenty to learn about god in the OT of course - vengeful, cruel, controlling to name but a few.
Of course there are things in the bible that are profound, poetic and moving, but, as a collection of books by different people, it is not the word of god or to be taken literally. It is akin to reading a book containing the reflections of different philosophers; they disagree, but each "take" on life has interesting ideas in it.
You say that the NT takes over rulewise. We would of course take that view because it accords with our liberal society, but, if you soon have said that you take it ALL literally you have to deal with the contradictions in that statement. Either you believe it all, as you have said, or you do not - you cannot choose to have the NT as superior rulewise if you also choose to believe the whole shebang.
Your adherence to the NT for a code of life, but not the OT indicates that you do in fact not believe it all, which is a relief! What you are doing is interpreting the OT through the filter of the NT - which thankfully means you do not take it literally.
I am so glad that you do not mind my "not understanding"!!