Can't stress training enough. If your company offers training take advantage of it. If it does not you have to consider if they take your success as a manager seriously, and if you are willing to invest a lot of your own time and energy into bettering yourself while being responsible for other people. I had a bit of training but also was fortunate to have worked for great managers I considered my mentors and found that to be an invaluable resource to fall back on.

It isn't clear exactly what your role entails, but in my opinion it is pretty much impossible to be a great manager and continue in a role as a technical contributor. To me that's more a technical lead than a manager, so if you still like writing code you need to think about that long and hard. Your #1 responsibility is the success of your team and they need to know you are there for them 100%, and not busy buried in code. There are times when you may be able to get your hands dirty but you can be nowhere near the critical path of the project.

You also have to remember you are not only managing your direct reports but who you report to and whomever is relying on your team. In my case, I reported to a VP but I also had to work laterally with other development managers, and in particular project managers that weren't always technical. Just like as an individual contributor you need to maintain a healthy relationship with those you work with directly because you need to balance what they need and want from your team with what your team needs and wants.

That being said, I lasted in management for a little over a year, mostly because the role evolved and due to some changes at the top where I didn't feel I was enabled to be an effective manager. Still, I found the experience invaluable as it gave me more insight into how to better work with people of all stripes. Like any role, technical or otherwise, you have to constantly evaluate what you are getting out of it, if you enjoy it, and if you want to continue bettering yourself in the craft.