You made an excellent purchase decision. It looks like a fine bike.

Don't lock it in public for longer than necessary. See if you can bring it with you. And get a lock that is appropriate for your area. In some areas, a flimsy cable is enough. In other areas, you need an 8-pound chain and eyes like a hawk's. It's best to have a lock that's a little better than the locks most other people are using, to encourage a potential thief to move onto other targets.

Don't buy too much stuff yet. There's potential for not using it. Ride a few times before you determine you need stuff. Bike commuting is expensiver than you think. You'll soon find out.