It's important to do the research necessary for what your prospective major is because sometimes you need to take certain things into account like scheduling and making sure you manage the right pre-reqs BUT don't let it overwhelm you or stress you out. Meet with advisors, the good ones are rare but they
really help and it can be very stressful to handle all this so any help you can get is good.
Also don't worry about changing your major, I've changed my specialization three times now until I finally found something that works for me. I'd recommend spending your first year taking a wide variety of classes that interest you so that you can fully realize your strengths and can determine what you'd like to have as your major. I honestly wish I did this because it wasn't until the last semester in my second year that I took a class that I loved and now I've decided to do my minor in that subject which means I have to do a bit of catchup.
Don't worry about graduating in four years. I'm taking an extra year, and a lot of people I've talked to have taken one or even two years. Remember that university/college is also about
learning and the experience itself, take what interests you and don't worry about perceived ideas of what you should be doing. After all you are the one paying for this so it is important that you actually care about what you're doing.
Lastly I'd say get involved around campus as much as possible. I was really shy at first and hesitant to do anything but after volunteering and other on-campus activities I've really opened up and my overall experience has greatly improved. Trust me, its a good way to not only get experience but also make the most of your time there.
That's the advice I have so far. The first year was really awkward for me but now that I've gotten used to things and experienced some triumphs and fails I really feel a lot better about university. Have fun!
