Are you moving out for uni or staying home? Are you moving from another country to the UK for uni?
Not everyone drinks, although a lot of people do. If you’re living in campus, away from home and family, then you will be more tempted to drink etc because you have the freedom to do soo more that you probably did or would’ve at home.
Best advice, don’t feel forced or pressured into doing anything you don’t want to. Peer pressure can be hard to resist, especially in the microcosm of uni, but you can do it. Stay true to yourself.
Try and surround yourself with likeminded people or those that understand and respect you and your values/morals and way of life and will not encourage you to do things you don’t want to, probably ideally because they don’t do it themselves.
There’s usually an Islamic society (ISOC) at most unis. Which is always useful to join to make friends etc, especially Muslims. There are plenty of societies, some are unofficially basically drinking clubs or over social where drink is a core component and you can get a sense of these by talking to people in these societies and other students, where you can then make your own informed decision on whether to join or not.
Not all of them are like this. Sports societies especially can go either way, very social and friendly, and some are highly competitive and serious / disciplined so may not drink etc during the season or regularly but then there are others will use any excuse (after training, games, end of season)