I did four years of undergrad there and potentially will be doing graduate school their too. You have a lot of options around campus. If you want to avoid the noisy undergraduates, just stay away from the student apartments (Lofts, knights circle, the edge, etc. any of those that come with furniture and pre-select your roommates). There are several quiet options around UCF, but it depends on your price point. Tivoli was pretty decent (I spent one year there), I also have friends who really like Traditions at Alafaya. If you look around waterford lakes town center (which is ~10 minutes south of campus down alafaya), their is also a lot of apartments with families, and waterford is a nice little town center with some good coffee houses that you can work from (Vesper, starbucks, barnes & noble, boston coffee house). In the other direction, Oviedo is getting more apartment options, and it would definitely be quiet.
There are sketchy options near campus that are very cheap and not student affiliated, and I would avoid them for safety concerns honestly.
Living in winter park(near rollins/trader joes), around Lake Eola (downtown), or Lake Baldwin (especially if you have a dog) would be very nice quality of life. A lot of food options, activities, less students. You could expect a 20-30 minute drive though depending on traffic and location. The drive isn't bad, I used to make a drive to lake baldwin in between classes, and without traffic it's pretty quick to get around (as long as you're not way out in the far part of winter park).
PM if you have more questions. I really love Orlando, you're going to have so much fun! I've lived in Florida my entire life and it's been my favorite city by far.