Python, Keras, and Tensorflow have made neural networks easy and accessable to everyone. I personally have had a lot of trouble finding a nice and easy guide detailing how to set up all three on a system. This guide contains simple, step-by-step instructions on how to install these three things.
Anaconda is a python package manager that does a lot of stuff for you. It contains many packages including pip, numpy, scipy, etc.
Step one is to install it. Do that by going here, downloading the package for your OS, and installing it.