So your links are for an article on amazon (a millennial favorite) totally unrelated to college costs, something that shows incomes have cyclically gone up and down relative to inflation but in general have trended up (adjusted for inflation), and an NCES site that links to no particular article or study. Very helpful. Your error is that you are comparing inflation adjusted income dollars with non-inflation adjusted student debt numbers. Here is a link that shows debt load for each graduating class:
But, while student debt has gone up, so has the average starting salary for college graduates. As long as there is inflation, each new year will set a record for student debt (this is basic math you should have learned in elementary, the fact that you are a college student and can't comprehend this is somewhat troubling). At the same time, it is likely that every year will also set a record for the average starting salary for college grads as well. With 2% inflation, raw numbers will double about every thirty five years, so if you are comparing numbers from the late 80s with today, all of those numbers should have almost doubled.
I was a broke college student once (never had a car until I was 23 and when I did, I paid $1800 cash for a beat up Toyota Camry), just have faith that if you work hard, live frugally and focus on advancing your career for your first 5-10 years out of college, you will be just fine down the road. On the other hand if you get passing grades in a soft major (or drop out), party a lot, splurge on a lot of unnecessary things in your 20s and 30s then you will need to work a lot more to get by later on in life. Being poor is a great experience as it teaches you what things in life are necessities and what things are luxuries. Most of the people I know with financial issues drive cars they can't afford, have toys they can't afford (designer pets, boats, ATVs, campers, etc.) and live in houses they can't afford (sometimes they can turn them for a profit, but sometimes they are the ones that get foreclosed on when the market goes south because they are in an ARM or other non-traditional loan because they couldn't save the 20% required for a traditional loan).