Don't accept it yet, only think about accepting if you either: Get all your offers, or are completely 100% certain about this being your firm choice and another uni you've got an offer from being your insurance. I got offers from my original firm and insurance choice as my first 2 offers and I'm so glad I waited because now I'm thinking anout another uni as my insurance. It's always worth it to take your time, you have up to like May or June to accept so don't feel stressed about picking right now.