Welcome to the forum
@Westley
Just keep reading the forum and learning from your Freestyle Libre, I started using the libre 10 days ago and have made a couple of changes based on the downloaded graphs.
However if you want a good book on type 1 diabetes management then look no further than
Think Like a Pancreas, it has some fantastic information on basal testing, working out insulin-to-carb ratio's and how to time your insulin doses to reduce postprandial spikes (to name a few).