A rant about being low income

I am sorry if this violates the rules of this sub and I am not looking for advice. This semester I had to work around 4 jobs to maintain myself. I am a low income student that does not come from wealth. Neither of my parents went to college. I work in amazing labs with top performing students. This semester my GPA took the hit even thought I thought I was balancing everything great. It hurts so much to realize that no matter how hard I work there is some application that will probably outperform mine because they have resources to focus on studies. I work hard and try my best. Recently my PI told me "you have an impressive stress tolerance" and I just wanted to break down right then and there because I wish I could just focus on research and my courses without having to figure out how I am going to pay my debts.

Im in a masters program thats mixed with a bunch of PhD students so I get evaluated with my peers who are literally in the middle of writing their dissertations. I try to tell myself not to quit but it's really hard when I know how tough getting into a PhD program in my field is.