<prompt> Human: Ive been at my current job for about five months, due for a performance and salary review next month. Me and a fellow coworker started on the exact same day holding the exact same title. We both hold a bachelors degree and have a similar amount of work experience. Actually, neither of us really have experience in this exact field so we are both still training, which normally takes half a year in this position. So far, Im two months ahead of her in training and another coworker told me that my boss said Im doing a much better job. The kicker? Her salary is around 10k higher than mine. The situation is that she was making this much at her previous job and they had no choice but to give her the same amount; she even had to take a small pay cut to come here. As for me, I didnt get so lucky to find a high paying position right out of college and I took my previous job more so for experience and passion rather than salary. So the salary they offered me initially was a significant raise for me and thats why I didnt negotiate. I also had no idea what the market standard was because this particular position itself is pretty uncommon and very specific. The truth of the matter is, it is really discouraging knowing that Im being so underpaid just because I had a lower paying job previously. What would you do if you found this out and how would you negotiate a significant raise without ratting out your coworker for disclosing his or her salary?  <response>: You have a salary review coming up. Youll probably get a raise. If not then ask without exposing your co-worker.She had a higher pay grade than you at her prior job so she got that here. Youre taking it personally for no reason. Worry about your own work, hustle hard and youll make money. Worry about what others make will drive you nuts for no reason. 