The name you choose is really quite personal, and using a poll is kinda impersonal. There are some guidelines that your therapist might work with you on.
It is usually best to avoid names that sound like feminized masculine names, so Jackie you should view with caution. If you like it best, the real name would need to be spelled like Jackie Kennedys first name, which I can't recall the correct spelling of right now as it was the French version to go with her birth name of Bouvier.
A good thing to do is to think about the names of your female relatives, especially those that are deceased, so that if you are asked (and it does happen) you can just say your name is in honor of that realtive. Find out a bit about them too, as that can also give you a sense of family connection through the name. Also, some of the older names are really kinda elegant sounding (Julianna, Jeanne (French Joan), etc.), so if you like Julia as a dimunitive, then spell your formal first name Julianna, maybe.
If you have ever asked your mother what you would have been named if you had been born a gg, then consider that name if you like it. Again, it can give you a sense of family continuity. For example, I was actually called Carolynn on my first birth certificate and my mother told me the last part (Lynn) was for my maternal grandmother who passed away 4 years before I was born, and the Carol was to honor her best friend in highschool.
I think Brooklyn would not be that good a name, personally, as it kinda violates the blending that you would likely want to do. Brooklyn is different enough to attract attention, and relates to a geographic area, and people will be asking you if you are from that area, etc.
Lisa, though short is a two syllable name in the way it is pronounced (LeeeSa) and should be a first name, with a short, single syllable second name, i.e. Lisa Ann or Lisa Jane, or some similar thing. Same can be said for Julia, though for some reason a second 2 syllable name like Marie or even Maria, or some such. Lisa seems to be a rather perennially popular name, as does Lucy for Lucille. Barbara got a bad rap from the Barbie doll, as Barbie was a common dimunitive for Barbara, pre Barbie doll.
Look up the popular names right around the year of your birth, which you can find on web search. Think about them. If I recall correctly your age, Lindsey, Erin, Spring and Winter (or Wynter) were among the more popular.
You can look at the meaning and linguistic roots of names, such as Helen which means strength, and its derivitives such as Ellen. Diana or Diane are also good names in that regard.
So do a bit of research and see if you can find a name that fits you. That is one advantage we have, the ability to select a name we like.
Carolynn
"It’s not given to anyone to have no regrets; only to decide, through the choices we make, which regrets we’ll have,"
David Weber – In Fury Born