Reddit reviews Liturgy of the Hours Inserts

Liturgy of the Hours Inserts are awesome for this.

You're very lucky. It's really confusing trying to figure it out on your own and fairly easy once you sit down with someone who knows what they're doing. I struggled with it for months on my own in college before I went home for the summer and was able to start praying Morning Prayer with my friars every morning. That's when I finally started understanding it.
Whenever someone's new at it and confused, my first suggestion is to see if their priest would be willing to help them.

If it doesn't come with a 2018 St. Joseph's Guide, pick one of those up with it. They're only like $2 and they tell you the page numbers for each day. You can look the page numbers up online for free, but I find it easier to just have the little booklet. You may also want to buy the inserts if it doesn't come with them. Again, they're only a few bucks and it saves you from a lot of flipping around.