It's not about money but mindset. One finding from Laude and Yeager is that many students from less wealthy families interpret and internalize setbacks (poor grade on a test, argument with roommate, someone being mean, etc.) very differently than their counterparts. Plus when doubts about capability and belonging are reinforced at home, these students struggle even more.
Mindset interventions influence graduation rates and student well being. A mindset intervention doesn't necessarily change a core belief but it can change the meaning of a discouraging event from a permanent setback to a temporary one! It also builds resilience which is needed in any endeavor of merit.
Experiment with this idea. Think of a goal you are struggling with and ask: