Question about the ways of the universe!

I'm not sure if this is the correct place to post so let me know!

So I've read that the universe wants us to succeed and and that we deserve abundance and all that stuff, but I am having trouble applying this to a real life situation.

For example, me and this one girl both want the same thing, but only one of us can have it. How can I believe that I deserve it anymore than she does, if we are all one? If the universe does actually want me to succeed and end up with this thing, why doesn't the universe want her to succeed? I hope this makes sense! I can explain in more detail if its hard to read. Thanks :)