u/ricosiphone is right about the day one books. For tips and tricks, there are a couple of Day One Cookbooks on Juniper's site. You could also try the book from O'Reilly : https://www.amazon.com/JUNOS-Cookbook-Time-Saving-Techniques-Configuration/dp/0596100140
Forget what I have turned on, followed pretty much what was in one of these books, can't remember which: https://smile.amazon.com/gp/product/0596100140
https://smile.amazon.com/Juniper-Networks-Warrior-Guide-Implementations/dp/1449316638/
They are both pretty good reads for learning juniper stuff. Good for best practices etc.