It sounds like you haven’t submitted your UCAS application - are you a first year A level student?
Have a think about what interests you about law, but remember that you don’t have to be a lawyer after completing a law degree. Many people don’t, and training contracts are incredibly competitive so good to have a backup plan anyway.
If you’re not sure about studying law, there are loads of great books you can read (eg. Letters to a Law Student), and I’d also recommend visiting your local court and reading judgments on BAILII.
Finally, if you’re only looking at law because of Suits/you want to be a corporate lawyer and earn loads of money, definitely don’t study law. Very few people go on to do this, which is why average earnings for people with a law degree are not great.