doing it mainly because i got a good atar
Really you should be doing something that you're
interested in and can see yourself doing in the future as a career. I know people that have achieved 90+ as an ATAR and have chosen a course that required an ATAR of 55-60. It's not bad or shameful etc to choose a course with a lower ATAR requirement than what you achieve. It is your life and you need to choose something that will benefit
you long term.
A bachelor degree is typically 3 years, 4 years if you're super lucky. To be honest, if you aren't doing something you're interested in, you will have a very difficult time getting through the duration of that degree. It's no wonder there are so many people transferring to other disciplines throughout their duration. In the end, transferring adds time and money. Is that really worth the change of direction? I'd say yes if you absolutely hate the course, if you're on the fence.. i don't know.
My advice to you would be to figure out whether the degree you are starting is the right one, fast. Transfer within the first year if you need to. That is really the benefit of university. If you decide one day that you absolutely hate what you're doing, you can change direction and do something that you're interested in. Now, you are responsible for your own learning and direction in life.
i'm very doubtful i'll make any friends (as i know no one at uni)
I was in the same position as you when I was at university. My friends weren't "academic" (that's probably the best word I can use at the moment), and none of them went to university. There are many ways to make friends, the most common being societies/clubs and speaking to people in tutorial classes/lectures/etc.
I think for me, it took a good 4 months or so to start getting social. It was a brand new environment, which I wasn't used to. Doing the same thing (in terms of school/routine etc) for 6 years (assuming you've been at the same school since year 7) ensures that anything else is foreign. Put that into perspective.. you've been at school since you were really young, high school since you were 12-13 years old. It really is a scary thought to go somewhere new and leave what you know behind.
It is true that it is more difficult to make friends at university, purely because the timetabling of university means that students are all over the place and no two people are guaranteed to have the same timetable (it could happen by chance, but you'd have to be pretty lucky for that to happen).
It's not like high school where you're with the same people for the entire school day and can hang out at lunch etc.. it's a very different environment and
you have to be willing to put in the effort. If you isolate yourself, it isn't going to happen. If you don't speak to anybody, it isn't going to happen.
pretty shit honestly- i'm not good at change.
Mate, I don't think anybody is good at change. I don't think there would be many people that could honestly say they willingly accept change and don't feel anxious about it. All you can really do is take the leap and hope that it all works out. Access support services if you need to and put yourself out there.