Grow into it. Don't think you have to totally conquer all your bike needs in one swoop.. Yes, be sure you have all your needs taken care of such as maintenance issues and being ready on the road for any mechanical problems that might arise.. But, more than likely, if you keep your bike in good shape , you'll be ok. I agree with Chip's claim. Invest in a good lighting system.. And make your bike so that you'll be seen in low light conditions such as reflectivity. Other than that, you'll learn as to what your future needs will be and update your bike as needed..
. A concern you'll have to solve from the get -go. How much stuff do you need to carry. That will be something to chew over...