I second doing CBT first an getting a bit of road time.
Also, this is really, really important. Learn how to steer a motorcycle properly. Look up countersteering, it is a scandal that it is not taught as standard. 👿
Bikes are great and if you like it, you will absolutely positively want a bigger bike 🙂 I would recommend a Decent twin for starters after DAS.
Conks
(ZX-9R rider)