Not being able to get access to a Badminton court shouldn’t mean you don’t practise.
This video shows a hand skills / racket control exercise using a trick shot. Whilst I don’t teach trick shots to my students, I do like them to experiment from time to time to purely to improve their racket skills.
Ideally give this a go outdoors (as long as it’s not too windy). That said, if you have enough space, indoors is fine too – just make sure you are out of reach of anything breakable!