First off Congrats!!!
Secondly, check your university email. Seriously. Go do it now, I'll wait.
Did you find something to take action on? Oh you didn't because only old people check their email, well guess what - you're now considered old. Have you said six-sevvvven thirty times a day? Yeah you're now old so welcome to the club and check your email.
If you're going to a college in the fall you need to check that email often. Put it on your phone or forward it to the email address you will check. Some forward to their gmail as that has a good app that will do notifications and you can always disable the email forwarding after you graduate.
Be sure you are signed up for your orientation for this summer. If you've attended orientation, you may have left with a less-than-exciting schedule for the fall....let's talk about how you can fix it. Go into your portal and go into your classes and find other sections of the SAME CLASS. If it's ENGL 1010 you may see there's 30+ sections of that class. Wow. As long as you're moving to the same class you can make changes as many times as you want to get the class schedule you desire.
This is a tip that not many incoming students will know...there's a date RIGHT before classes start where if you haven't confirmed your schedule and have a zero balance they will drop your classes. It's called "The Purge" and I'll talk more about what it is and such later, but for today you will want to know that it can happen, but not to you because you're paying attention. If there's one class section that's full, but would fit into your schedule perfectly - go join the waitlist for it today. The earlier you're on the waitlist the better. Now, be sure to check your email daily because if someone drops it you will only have a short window of time to sign up for it. I'll tell you more about how to grab the class if it doesn't have a waitlist in a little bit, but if there's a waitlist go get on it now.
Have a good summer and make sure you have no outstanding forms to fill out in your financial aid section of your portal too. There's entrance counselling for first time student loan recipients and you may have to do it before it will post to your account. It's a lot, I know. I'm here to remind you at least until you realize that this happens each year.