@Idalys2
I see that your listing is in Dallas, Texas. I imagine there are quite a few listings there? So, perhaps 7th page isn't that bad.
RE what determines search ranking, there are a lot of theories about this and Airbnb has also published some help articles trying to explain it, but I haven't seen one recently and, since the Summer Release, I am not sure any of those are completely accurate/relevant anymore.
The only thing I can advise is to make your listing as good as it can be, i.e. the best photos, a great description, a price that is competitive (but not too low). Keep an eye on the competition to see who is doing well and analyse why.
Another suggestion is to get other people (here on the CC, but also maybe people you know) to give you feedback on the strengths and weaknesses of your listing.