Even the most seasoned researchers get stuck. That is part of the discovery process of research.
A few suggestions:
What do I do if I hit a paywall?
Using Penn subscribed databases sends you through the Libraries "proxy." The proxy is the key that unlocks the subscription paywalls. You should never have to pay for a journal article. Talk to your librarian if you run into trouble connecting to an article. 99% of the time they can help you get the article quickly.
To avoid paywalls:
If we don't have direct access to an article or book chapter, you can "Request Scan" (the Libraries will request from another library--turn around time can be quick!) or request books from "Request Print," which will trigger a request from one of our partner libraries. Log into Franklin Catalog to see all of your options.