<prompt> Human: So, a long story short... I was young enough to accept a job, being underpaid. I now am a critical piece of the company 3 yr later, company of 40 ppl, and found out that I should be making, at the low end, 20,000 more.I demanded that 20,000.About 2 weeks later, I found that someone hired under me was making 30,000 more, meaning I lowballed myself by at least 10,000 again.Is there any tactful way to approach this, or am I better off seeking that money via move?  <response>: Somethings not adding up here. Youre apparently smart enough to have a salary where you were being underpaid by 30K this implies a very high salary to begin with, but youre not smart enough to have an understanding of how much youre worth? Also, no one is critical - everyone can be replaced. The sooner you learn that, the better your career will be for it. 