It’s good that you figured out quickly that the pre-med path is not for you. Lots of students sink a lot of time, money, and grief into that quest before realizing that it’s not going to happen.
The good news with pre-law is that it doesn’t have a whole bunch of specific prerequisites like med school does. You basically need two things to get into law school: good grades, and a strong LSAT score. There’s no need to start prepping for the LSAT yet, so you can basically put the whole issue of law school aside for now, and focus on picking a major in which you can 1) get good grades and 2) make yourself employable so that you can work and make money after you graduate. (Then, you can either prep for the LSAT and go that route, or realize that you have a perfectly good career without law school. You can cross that bridge when you come to it. Just focus on keeping your GPA up so that you have that option if you want it.)
You might consider switching into DUS: About the Division of Undergraduate Studies | Division of Undergraduate Studies | The Pennsylvania State University
How are your grades so far? All of the undergraduate business majors have prerequisites and GPA thresholds to get in. You don’t have to pick a specific major yet; you just need to take prerequisite courses and do well in them. ( Business Core — Smeal Undergraduate Student Exchange ) This is why the DUS advising process might be helpful. You definitely need to meet with someone who can look at where you stand and give you specific advice for your situation.
It’s very easy to fall through the cracks at a big school like PSU. If you’re a low-income 1st-gen student, you’re most likely accumulating debt and cannot afford setbacks. Don’t try to fly below radar. Get good advice and follow it.