Confused / frustrated

This is  the 3 time for typing this.     I am  confused filling out my amended form after I received a 1099-Div and a 1099-B from 1 company and a amended 1099 from a bank.

1 - I entered the items from the missed 1099s and amended 1099. I hoped I was looking at all previous entries          to make sure I didn't miss something else.

2 - As I entered "A" sales I did not see anything on "D" & "E" so I entered them.  Deciding I should not have I             deleted them.  Some time later I entered them again (before I found my answer to the questions on "D" &              "E", which was very hard to find)

3 - I do not know where I stand with my amended form.  Since I haven't filed this should I start all over again?              Can I start over??