Congrats!
If you couldn't get work, say, or if you found the practicalities of studying whilst working difficult - could you afford to study without working?
Of course I'm not expecting a direct answer to that but just to put across the thought.
When going through some big life changes it's really helpful to think about and consider 'worst-case scenarios', whilst it's a bit of a Debbie Downer it's important so it doesn't come by surprise.
Anyway - congratulations! I hope you enjoy your studies!