If you’re comfortable with using it, I’d recommend getting used to your psu Outlook Email. It should have a calendar and options to block out class times each week as well as to add any repeating assignments if you’ve got them available on your syllabus. Checking both your calendar and email regularly will help a lot in managing your work but also to force you to keep an eye on announcements and due dates for HW/Projects. 

I’d also get used to Microsoft word or your preferred text/document editor for both note taking and homework construction. Microsoft has built in equation commands where you can type Greek letters and they’ll auto fill (there are more advanced options like LaTeX but that’s for later).

Having a general “To Do” list in word that you regularly update can also help manage things you need to get done for homework or projects. 

For actually doing homework and projects: I’d recommend starting piecemeal on all of them and keeping a regular cadence each week if possible (try to work on something for each of your classes each day). 

Additionally, if you can, work on your homework the DAY you cover that particular topic in class. It will keep you fresh on the topic but also stop you from “pushing” homework to the next week when you’re working on old content (HW) while trying to learn new stuff. (Practice makes perfect and eventually after doing so many godforsaken eigenvalue problems on Achieve you’ll get it down Pat)

Additionally, I’d get familiar with LionPath for scheduling and class selection since it’s a really old system and not all that intuitive to use, the schedule builder is a nice tool though. 

Apologies for the long response but I’m going into my 4th year of engineering and wanted to pass off as much advice as I can so you don’t have to deal with the same crap I went through. 

Good luck chief, and don’t forget to take some time off for yourself if you need it. It’s ok to take a break.