Is the advice something along the lines of once you have a couple years of relevant experience start looking for a new job that needs that experience?
Because that’s how you get good increases in income at least in your early career.
Later on you’ll hit a plateau of sorts where changing employers to get a raise is trickier because they’re concerned about paying too much for you to come on board, so your job search will take a bit longer. But someone will probably hire you eventually for a good sized increase.
Don’t get to excited about 1%
https://youtu.be/F200wpEpJ4w
NdGT points out that 1% difference in DNA has within it somewhere the difference between chimps and humans. Think about that 1% between us and the post humans that come after us, or aliens that are out there already.