I don’t know what keyword you are bidding for, but it looks like you want to be in the top 3 of a popular word.
That is bad policy, and probably most of the clicks you are getting are competitiors who want you out of the way and want your money to run out.
Pick a lot of keywords that are much cheaper and less used. You will pay a similair amount, get a lot less visitors per keyword but add them up and get the same number as now.
No one will be clicking your listing and the visitors will look for a more specific thing and be more targeted.
Good luck!