gym game works more if you can take her out of the gym, not right after, I mean ask her out, and when you go to your work out in the gym you concentrate on it and if you both are in the rest moment you talk briefly with each other, then back to the trainning.
the OP problem is, he think he don't need to hear us because he knows better, and don't want to belive he will fail, he like to think she is just playing hard to get, and don't want to think she is just not interested on him.
only fix to this is stop wondering, ask her out, if she like you she will go if not, you move on, improve yourself, and go out with other woman, maybe after sometime you will be good enough she will be interested in you, but if you are doing well now you wouldn't have time for her.
the OP problem is, he think he don't need to hear us because he knows better, and don't want to belive he will fail, he like to think she is just playing hard to get, and don't want to think she is just not interested on him.
only fix to this is stop wondering, ask her out, if she like you she will go if not, you move on, improve yourself, and go out with other woman, maybe after sometime you will be good enough she will be interested in you, but if you are doing well now you wouldn't have time for her.